Monthly Archives: July 2013

We’re Living Longer — and Healthier

We’re Living Longer — and Healthier



There’s no doubt that we’re living longer than previous generations. Now there’s encouraging news that those added years may be healthy ones as well. According to the latest tallies from the Centers for Disease Control and Prevention (CDC), in 2010 the average life expectancy rose from 78.6 years in 2009 to 78.7 in 2010. But the data has not been as definitive about whether that means people are stronger and healthier and therefore adding years to their lives, or whether medical innovations are extending lives, but leaving people sicker for longer.

Researchers from Harvard University report that there is some reason to be optimistic about our longevity. “Effectively, the period of time in which we’re in poor health is being compressed until just before the end of life. So where we used to see people who are very, very sick for the final six or seven years of their life, that’s now far less common. People are living to older ages and we are adding healthy years, not debilitated ones,” said David Cutler, the Otto Eckstein Professor of Applied Economics at Harvard University and author of the latest study, in a statement.

Continue reading We’re Living Longer — and Healthier

My Name is John and I Am a Sex Addict. (Or Maybe Not)

My Name is John and I Am a Sex Addict. (Or Maybe Not)



Is it or isn’t it? A new study undermines the theory that sex addiction is a brain-based disorder similar to other addictions.

For most of the public, the concept of addiction is pretty straightforward— it involves taking something, or doing something, that brings you pleasure and that you can’t control. But scientifically, addiction means something much more specific, if not precisely quantifiable.

For much of the 20th century, psychiatrists and lay people defined addictions as use of substances or behaviors that required ever-increasing doses to maintain a satisfying “high.” These addictions also conspired to form some type of physiologic dependence, which led to physical symptoms such as vomiting and diarrhea when the addictive substance or activity was stopped.

Continue reading My Name is John and I Am a Sex Addict. (Or Maybe Not)

Are you ‘normal’ in bed?

Are you ‘normal’ in bed?

By Ian Kerner

How does your sex life measure up? That’s the central premise of “The Normal Bar,” a new book by Chrisanna Northrup and sociologists Pepper Schwartz and James Witte.

Based on the responses of an Internet survey of some 70,000 people, “The Normal Bar” endeavors to ease people’s concerns about their sexual relationships by providing readers with an idea of what’s “normal” for most couples — from how often they have sex, to how sexually adventurous they are, to how they romance each other outside the bedroom.

“It isn’t about a 98.6 kind of normal — just the normal of exceptionally happy couples (gay and straight) and what we can learn from them,” Schwartz says.

Continue reading Are you ‘normal’ in bed?

Why you should talk about sex before marriage

Why you should talk about sex before marriage


By Ian Kerner, Special to CNN

Most couples tying the knot don’t want to wait until the honeymoon to know if things are going to work in the bedroom, and would agree that having sex before marriage is an important way to estab if there’s a basic level of sexual compatibility.

But — without getting into the moral pros and cons of premarital sex — that may not always be the case.

“Just because you have good sex, and a lot of it, before marriage doesn’t mean it will be that way for your entire life,” says social psychologist Justin Lehmiller.

Continue reading Why you should talk about sex before marriage

Hormone-Replacement Therapy: Could Estrogen Have Saved 50,000 Lives?

Hormone-Replacement Therapy: Could Estrogen Have Saved 50,000 Lives?


By @acsifferlin

For more than a decade, doctors have cautioned women about the risks associated with hormone-replacement therapy. But those warnings may have put one group of women at increased risk of dying early, according to the latest study.

Researchers at Yale University say nearly 50,000 women may have died prematurely after they stopped taking hormone-replacement therapy (HRT) to treat menopause symptoms, following a much publicized 2002 study that revealed the treatment increased risk of heart disease and breast cancer.

Continue reading Hormone-Replacement Therapy: Could Estrogen Have Saved 50,000 Lives?

Sick Before Their Time: More Kids Diagnosed With Adult Diseases

Sick Before Their Time: More Kids Diagnosed With Adult Diseases



Diabetes, obesity and elevated blood pressure typically emerge in middle-age, but more young children are showing signs of chronic conditions that may take a toll on their health.

The latest report on the trend, from researchers at Harvard Medical School found that children and adolescents are increasingly suffering from elevated blood pressure. Published in the American Heart Association journal Hypertension, the study showed a 27% increase in the proportion of children aged 8 years to 17 years with elevated blood pressure over a thirteen-year period.

The scientists compared over 3,200 children involved in the National Health and Nutrition Examination Survey (NHANES) III in 1988-1994 to over 8,300 who participated in NHANES in 1999-2008. The national survey records health, eating and lifestyle behaviors of the volunteers. More kids in the recent survey were overweight, with larger waistlines than those in the previous cohort. And the children with body mass index (BMI) readings in the top 25% of their age group were two times more likely to have elevated blood pressure than the kids in the bottom 25%.

The kids did not have diagnosed hypertension, which requires a threshold of 140 -90, but elevated blood pressure — anything above 120-80 — at such young ages could prime them for hypertension later. “High blood pressure is dangerous in part because many people don’t know they have it,” said lead study author Bernard Rosner, a professor of medicine at Harvard Medical School in a statement.

The results are only the latest to reveal the first signs of chronic conditions that normally don’t occur until middle-age, in children and teens.

Earlier this year, the American Academy of Pediatrics released its first guidelines for type 2 diabetes, sometimes called adult-onset diabetes, among kids. Pediatricians are not typically trained to treat this form of the disease; they are more familiar with type 1. As TIME reported in January,:

Children have long been diagnosed with Type 1 diabetes, in which the body fails to make enough insulin-producing cells to process glucose in the blood, but doctors are now seeing an increasing number of children with type 2 diabetes, in which fat cells that enlarge with weight gain thwart the body’s ability to break down sugars. Up to a third of cases being diagnosed in kids these days are Type 2, which generally develops later in life, generally after age 40.

What’s driving today’s children to develop these diseases before their time? Obesity may be play a major role in many of these conditions, from diabetes to blood pressure and joint problems, says experts. “When I was in residency we didn’t learn too much about obesity or type 2 diabetes. Type 2 diabetes happened to adults. Every once in a while you had a type 2 diabetes case. Now, those are the norm. We see type 2 diabetes happening in children and teenagers all the time now,” says Dr. Dyan Hes, a New York City pediatrician and obesity specialist and founder of Gramercy Pediatrics. Hes is unaffiliated with the Hypertension study.

The list of symptoms and diseases that Hes now sees among her young patients could just as easily apply to patients who are decades older — high blood pressure, type 2 diabetes, pre-diabetes, worsening asthma symptoms, sleep apnea, joint pain, and swelling in the brain caused from being morbidly obese.

And to treat these conditions, more young children are taking medications for longer periods of time, so the long term health consequences of that trend is starting to worry many pediatricians. “It is creating youth who are disabled or medicated. They can’t participate in regular sports that other kids do. They are taking medicine at such young ages. So many of these medicines have bad side effects,” says Hes. “Medicines are expensive so it is a huge burden to the health care system. You have kids going to cardiologists or orthopedic doctors for joint pain.”

Dr. Pamela Singer of the division of pediatric nephrology at the Children’s Hospital at Montefiore Medical Center in New York says an estimated 60% of referrals to her division are for elevated blood pressure. “In the past, children with hypertension tended to be those with underlying conditions such as renal disease, or those with specific vascular or genetic abnormalities,” she says. “However, now the vast majority of hypertension that we are seeing is “adult-type” hypertension, related in large part to diet and lifestyle. That’s not just true for hypertension, but also for other diseases classically thought of as “adult diseases,” such as type 2 diabetes, which are becoming more common in the pediatric population. These conditions may all be interrelated – obesity, elevated blood pressure, high cholesterol, insulin resistance – and physicians and researchers are trying to elucidate those relationships.”

Eating a healthy diet, for example, is not just about food itself but the food environment, which is constructed around cultural, social and economic factors that determine the diversity of food choices and the accessibility of these options. In the recent study, the researchers found that kids with the highest sodium intake were 36% more likely than kids who consumed less salt to have elevated blood pressure, and over 80% of the kids ate more than 2,300 milligrams of sodium a day. The American Heart Association currently recommends people consume 1,500 milligrams of sodium a day, but that may be a challenge for those who don’t have access to fresh fruits and produce and rely on processed or fast food, which tend to be higher in salt.

Hes is hopeful that recent efforts by the USDA to make school lunches and food environments healthier will have some effect on worrisome health trends among students. In June, the agency announced that by next school year, schools nationwide will provide healthier snacks in vending machines that are low in fat, sodium and salt.

“I wish they would have a soda tax, but they don’t. They made tobacco prohibitively expensive and that’s why smoking has gone down. The need to make sugary drinks and snacks more expensive too,” she says. Hopefully the next cohort of children won’t show the same increase in adult diseases, and more youngsters can enjoy a childhood free of medications and disease symptoms.

How Writing Heals Wounds — Of Both the Mind and Body

How Writing Heals Wounds — Of Both the Mind and Body



Talking about difficult experiences can be a way of easing the emotional pain of trauma, but the latest research shows that expressing emotions in words can also speed physical healing.

The study is the latest delving into the mind-body connection to suggest that expressing emotions about a traumatic experience in a coherent way may be important to not just mental but physical health as well. It showed that the calming effect of writing can cut physical wound healing time nearly in half.

Researchers led by Elizabeth Broadbent, a senior lecturer in health psychology at the University of Auckland in New Zealand, studied 49 healthy senior citizens, aged 64 to 97.  For three days, half were assigned to write for 20 minutes a day about the most traumatic event they had experienced, and were encouraged to be as open and candid as they could about exactly what they felt and thought at the time. If possible, they were also asked to share thoughts or emotions that they had never expressed to others about what they had undergone.

The other participants wrote for the same duration about their plans for the next day, avoiding mentioning their feelings, opinions or beliefs. Two weeks after the first day of writing, researchers took small skin biopsies, under local anesthesia, that left a wound on the arms of all participants.  The skin tissue was used for another study.

A week later, Broadbent and her colleagues started photographing the wounds every three to five days until they were completely healed.  Eleven days after the biopsy, 76% of the group that had written about trauma had fully healed while only 42% of the other group had.

MORE: How Child Abuse Primes the Brain for Future Mental Illness

“This is the first study to show that writing about personally distressing events can speed wound healing in [an older] population that is at risk of poor healing,” says Broadbent.

It’s not the first, however, to reveal the intriguing connection between state-of-mind and physical health. In previous studies, this type of emotionally expressive writing, as opposed to writing on neutral topics, reduced viral load in HIV-positive patients and increased their levels of virus-fighting immune cells. The practice also increased the effectiveness of the hepatitis B vaccination by increasing antibody levels generated by the vaccine and speeding wound healing in young men.

But in terms of psychological health, the results are more conflicting. A recent study found that writing about disturbing combat experiences may improve marital satisfaction among soldiers returning home from war zones while another paper in which patients with post-traumatic stress disorder (PTSD) wrote about their difficult experiences did not find that the practice reduced symptoms. Putting emotions down in words did, however, improve mood and reduce levels of stress hormone  in these patients.

One way that writing about distressing events could give the body a boost is by promoting sleep. “We found that people who got at least seven hours of sleep most nights had faster healing than those who got less sleep,” Broadbent says. Sleep deprivation can lower levels of growth hormone, which is important for repairing injuries. And writing about their traumatic experiences also seemed to help participants to actually get more sleep.  “Many people who have written about their negative experiences report that it allowed them to gain greater insight into what happened and to put the event into perspective,” says Koschwanez, “This might reduce the extent to which the event troubles them and possibly improve their sleep.”

The writing may also help the body by reducing stress; less anxiety means fewer stress hormones, which can interfere with chemicals needed for wound healing. While Broadbent’s study did not find such a link, it’s possible the researchers were not evaluating the right anxiety measures.  “It might be that our perceived stress questionnaire was not assessing the right type or duration of stress,” says Heidi Koschwanez, a study co-author and postdoctoral fellow at the University of Auckland.

MORE: Blogging Helps Socially Awkward Teens

It’s also possible that emotional writing is not helpful for everyone. In one study published last month, when people who typically are stoic wrote about their worst trauma, their anxiety actually increased.  Those who were accustomed to being emotionally open, however, showed a drop in worry measures. That suggests that different people may have different ways of coping with traumatic events, and that writing may be an effective outlet for those who are normally more expressive, while pushing people to express feelings when they are not inclined to do so can actually increase risk for PTSD.

For those who do experience relief from expressing their emotions, however, writing may become an important part of helping them to recover —both in mind and in body— from difficult situations.

Does your relationship need a ‘love drug’?

Does your relationship need a ‘love drug’?


By Ian Kerner, CNN Contributor

It’s a Saturday night. You get the kids to bed, wash the dishes and plop down on the couch for a marathon of reality TV. Across the room, your partner is engrossed in his or her iPad.

Later, you give each other a chaste kiss good night, roll over and go to sleep.

On one hand, you wish the magic of your heady early days would return. On the other, you’re not sure if you really care that much anymore.

It’s a scene so typical in many marriages and long-term relationships that it’s no wonder only an estimated 37% of couples say they’re still very happy together.

But what are your options? Divorce? Therapy? How about a “love drug” guaranteed to keep you both content?

That’s the premise of a recent report in Current Opinion in Psychiatry that examined the implications of a potential pharmaceutical drug aimed at keeping couples happy and in love.

Surveys suggest that humans may not be meant to stay in lifelong, monogamous relationships: Roughly half of all marriages end in divorce, while up to 72% of husbands and 52% of wives cop to cheating on their spouses.

Yet many couples want to remain married, despite the potential problems. Based on this concept, researchers at the University of Oxford considered what might happen if couples had access to an intranasal spray containing oxytocin.

Oxytocin is the “cuddle hormone” that’s released during childbirth, nursing and orgasm, resulting in feelings of closeness, bonding and connection. Could a spritz of liquid oxytocin have the same effects on your romantic relationship? Some research suggests that it might.

For example, one study published last year in the journal Social Cognitive and Affective Neuroscience found that, of 47 couples, those who sniffed oxytocin before discussing a disagreement were more likely to react positively toward each other than those who used a placebo spray. Such a product, say the authors of the more recent report, could be used under the direction of therapists and other clinicians to “enhance marital well-being.”

Yet other evidence suggests that the effects of this hormone may not always be so beneficial: In some research, oxytocin was found to amplify negative memories, while studies of the prairie vole — one of few animals that remain in lifelong relationships, presumably because of its high levels of oxytocin — show that this critter is also prone to infidelity. When it comes to supplemental oxytocin, there are ethical issues to consider, too.

“Pharmaceutical companies are pushing the medical approach because it’s profitable, while doctors and patients are increasingly demanding medications because taking a pill or using a spray is cheaper and ‘easier’ than therapy,” said social psychologist Justin Lehmiller. “I’m uncomfortable with the notion that the key to solving relationship problems is taking a drug.”

Of course, that hasn’t stopped manufacturers from jumping on the bandwagon: Safe or not, a slew of oxytocin-based products are for sale, no prescription necessary. Aimed at improving relationships between partners and supposedly increasing attraction among strangers, these products are pricey — and unproven.

Instead, I recommend boosting oxytocin naturally. It could be as easy as simply giving each other a nice long squeeze. In her book “The Female Brain,” Dr. Louann Brizendine says that hugging your partner for 20 seconds or more has been shown to trigger the release of oxytocin.

Added Lehmiller, “If couples make an active effort to be more intimate and touch each other more often, they can likely boost their oxytocin levels without the aid of a drug. It’s also likely that enhancing intimacy in this way will do more good for your relationship in the long run than any pill ever could.”

You’ll save your money — and maybe your relationship, too.

To Avoid Dementia, Stay Mentally Active Throughout Lifetime

To Avoid Dementia, Stay Mentally Active Throughout Lifetime



The key to staying sharp in old age is to exercise your brain throughout life. Now the latest research shows that such activity may actually slow cognitive decline and, if you do develop dementia, shorten the time you spend living with it.

The new study, which was published in Neurology, involved nearly 300 older people, about half of whom developed dementia or mild cognitive impairment (often a precursor to dementia), over the course of six years. At the start of the study, participants reported on how frequently they engaged in mentally stimulating experiences throughout life such as extracurricular activities while in school and, more generally, reading books, writing letters, reading the newspaper and visiting libraries. (Because the research started over 20 years ago, internet related activity was not common.)

By studying brain autopsies after the participants died, the scientists found that 14% of the variability in mental decline could be attributed to the amount of intellectual activity in which people participated, both early and late in life. And that effect was seen even after the researchers accounted for other factors that influence dementia like age and education.

They also adjusted for the effect of brain changes due to diseases such as Alzheimer’s, stroke and Parkinson’s disease, which the research team said accounted for about a third of the differences in people’s cognitive decline before death. By comparison, cognitive activity accounted for nearly half as much as such pathology.

The people who were most active in late life showed a 32% slower rate of decline compared to those who maintained an average level of mental activity. And those who were the least active had a 48% faster fall into dementia.

“The beauty of this study is that they tested people at different points and followed them [through to] autopsy,” says Prashanthi Vemuri, an Alzheimer’s researcher at the Mayo Clinic who wrote an editorial accompanying the study, but was not otherwise associated with the trial. “People need to know [this] and be aware that it is possible to slow down the decline of dementia,” Vemuri says.

That’s important knowledge, given that nearly half of people over age 85 develop Alzheimer’s and the baby boom generation is rapidly approaching the age at which risk starts to increase; the lifetime risk of Alzheimer’s for women is 17% and for men is one in ten. By 2050, the Alzheimer’s Association estimates that the prevalence of dementia will double due to the increased proportion of the elderly in the population.

“Anything having to do with reading and writing counts in spades,” says the study’s lead author Robert Wilson, senior neuropsychologist at the Rush Alzheimer’s Disease Center at Rush University in Chicago. Sending emails or reading news online, he suspects, would have similar effects. “There’s no reason to think they wouldn’t be as mentally stimulating.”

How early does the mental activity have to start? Earlier research found that childhood intelligence can account for some of the differences in the brain once attributed to later-life cognitive activity. But whether it does so by increasing lifetime cognitive activity— people who grow up reading, for example, tend to be life time learners— or through some other means is not clear. The new study found that both early childhood cognitive activity and such activity in middle age were linked with slowing mental decline.

Vemuri says brain aging is similar to having money in the bank— people who are intelligent are cognitively “richer” and therefore have more reserves upon which to draw when brain function starts to decline. Consequently, it takes longer to “bankrupt” these resources. And cognitive activity throughout a lifetime can increase this “wealth.” But this study shows that greater cognitive activity not only adds funds, but actually slows the rate at which you lose intellectual resources— and that helps no matter how much you start out with.

Research also shows that engaging in more intellectual activity shortens the time during which someone is actually demented if they do get ill— meaning that it not only delays active disease, but shortens the worst part of it. “Reading, writing playing music, playing games [all of these] could be good,” says Vemuri, “I don’t want to pinpoint specific activities: keeping your brain mentally stimulated and active is what is primary.”

And it’s not just intellectual stimulation that may be important. Social engagement also seems to be crucial. “We’re finding in our studies that social interactions and group activities seem to help,” she says.

“The more, the better,” Wilson says. “But it’s not like physical exercise, [where it’s] ‘no pain, no gain.’ The metaphor should be ‘a hobby.’ In order to change structure and function, the activity needs to be sustained and to be sustained, it needs to be enjoyable. Hobbies like quilting or photography, acting and theatre, book clubs: those sorts of things. There’s no product that needs to be bought and one size won’t fit all.” What is important, he says, is that the activity is intellectually stimulating, and interesting enough to keep you occupied for more than one or two sessions.

When does your mental health become a problem?

When does your mental health become a problem?


People often experience sadness in response to difficult life events, but when does this become a mental health problem?

One in four people are expected to experience a mental health problem, yet stigma and discrimination are still very common. Myths such as assuming mental illness is somehow down to a ‘personal weakness’ still exist.

How do we define mental health?

A person who is considered ‘mentally healthy’ is someone who can cope with the normal stresses of life and carry out the usual activities they need to in order to look after themselves; can realise their potential; and make a contribution to their community. However, your mental health or sense of ‘wellbeing’ doesn’t always stay the same and can change in response to circumstances and stages of life.

Everyone will go through periods when they feel emotions such as stress and grief, but symptoms of mental illnesses last longer than normal and are often not a reaction to daily events. When these symptoms become severe enough to interfere with a person’s ability to function, they may be considered to have a significant psychological or mental illness.

Someone with clinical depression, for example, will feel persistent and intense sadness, making them withdrawn and unmotivated. These symptoms usually develop over several weeks or months, although occasionally can come on much more rapidly.

Mental health problems are defined and classified to help experts refer people for the right care and treatment. The symptoms are grouped in two broad categories – neurotic and psychotic.

Neurotic conditions are extreme forms of ‘normal’ emotional experiences such as depression, anxiety or obsessive compulsive disorder (OCD). Around one person in 10 experiences these mood disorders at any one time. Psychotic symptoms affect around one in 100 and these interfere with a person’s perception of reality, impairing their thoughts and judgments. Conditions include schizophrenia and bipolar disorder.

Mental illness is common but fortunately most people recover or learn to live with the problem, especially if diagnosed early.

What causes mental illness?

The exact cause of most mental illnesses is not known but a combination of physical, psychological and environmental factors are thought to play a role.

Many mental illnesses such as bipolar disorder can run in families, which suggests a genetic link. Experts believe many mental illnesses are linked to abnormalities in several genes that predispose people to problems, but don’t on their own directly cause them. So a person can inherit a susceptibility to a condition but may not go on to develop it.

Psychological risk factors that make a person more vulnerable include suffering, neglect, loss of a parent, or experiencing abuse.

Difficult life events can then trigger a mental illness in a person who is susceptible. These stressors include illness, divorce, death of a loved one, losing a job, substance abuse, social expectations and a dysfunctional family life.

When is someone thought to be mentally ill?

A mental illness can not be ‘tested’ by checking blood or body fluids. Instead it is diagnosed, usually by an experienced psychiatrist or clinical psychologist, after studying a patient’s symptoms and monitoring them over a period of time.

Many different mental illnesses can have overlapping symptoms, so it can be difficult to tell the conditions apart.

To diagnose a mental health condition, psychiatrists in the UK may refer to the World Health Organisation’s International Classification of Diseases (ICD) system. This lists known mental health problems and their symptoms under various sub-categories. It is updated around every 15 years.

Some experts argue that the current system relies too strongly on medical approaches for mental health problems. They say it implies the roots of emotional distress are simply in brain abnormalities and underplay the social and psychological causes of distress.

They argue that this leads to a reliance on anti-depressants and anti-psychotic drugs despite known significant side-effects and poor evidence of their effectiveness.