Health Research: How St. John's Wort can make you sick ♦ Vaccines and treatment for dengue virus possible ♦ Sleep deprivation could reduce intrusive memories

Sleep deprivation could reduce intrusive memories of traumatic scenes A good night's sleep has long been recommended to those who have experienced a traumatic event. But a new study provides preliminary experimental work suggesting it could actually be the wrong thing to do.

Warts and all: How St. John's Wort can make you sick St John's Wort can produce the same adverse reactions as antidepressants, and serious side effects can occur when the two are taken together, according to new research.

Thin colorectal cancer patients have shorter survival than obese patients Although being overweight with a high body-mass index has long been associated with a higher risk for colorectal cancer, thinner patients might not fare as well after treatment for advanced cancer, according to a new study

People with epilepsy can benefit from smartphone apps to manage their condition While many people with epilepsy can control their seizures with medication, those unpredictable and involuntary changes in behavior and consciousness can be limiting for others. Neurologists evaluated the application of smartphones in epilepsy care. Apps include seizure diaries as well as medication trackers with reminders to take the next dose of medication. In addition, apps are available to answer any questions patients with epilepsy might have, to detect potential drug interactions and to detect seizures.

Vaccines and treatment for dengue virus possible Researchers have determined the structure of a human monoclonal antibody which, in an animal model, strongly neutralizes a type of the potentially lethal dengue virus.

Senior Health Why are 95% of people who live to 110 women? ♦ :Light-intensity exercise could prove beneficial to older adults, ♦ Partial sleep deprivation linked to biological aging in older adults

Why are 95% of people who live to 110 women? You're as old as your stem cells Human super centenarians share at least one thing in common--over 95 percent are women. Scientists have long observed differences between the sexes when it comes to aging, but there is no clear explanation for why females live longer. In a discussion of what we know about stem cell behavior and sex, researchers argue that it's time to look at differences in regenerative decline between men and women..

As baby boomers age, do their decisions get better or worse? As an economic and political force, researchers say that older adults hold a tremendous amount of social power in the United States. A new study is examining what factors contribute to older adults’ decisions.

Light-intensity exercise could prove beneficial to older adults, An easy walk, slow dancing, leisurely sports such as table tennis, household chores and other light-intensity exercise may be nearly as effective as moderate or vigorous exercise for older adults -- if they get enough of that type of activity.

Partial sleep deprivation linked to biological aging in older adults One night of partial sleep deprivation promotes biological aging in older adults, a new study suggests. One night of partial sleep deprivation activates gene expression patterns in peripheral blood mononuclear cells (PBMCs) consistent with increasing accumulation of damage that initiates cell cycle arrest.

Food Research: Impulsivity linked to binge eating ♦ Balancing protein and carb intake may work as well as calorie restriction ♦ Green tea may help reduce prostate cancer

Impulsivity linked to binge eating Do you get impulsive when you're upset? If so, this could be putting you at risk for binge eating. The more impulsive you are, the more likely it is you'll binge eat when experiencing negative feelings.

Long life: Balancing protein and carb intake may work as well as calorie restriction Cutting calories through dietary restriction has been shown to lower cholesterol, improve insulin sensitivity, and even prolong life in mammals. Now, new research shows that, at least in mice, low protein, high carbohydrate diets can provide benefits similar to those obtained with calorie restriction.

Component in green tea may help reduce prostate cancer in men at high risk Prostate cancer is the second most common type of cancer in men and is predicted to result in an estimated 220,000 cases in the United States in 2015. A team of researchers recently published results of a randomized trial that assessed the safety and effectiveness of the active components in green tea to prevent prostate cancer development in men who have premalignant lesions.

Eating less during late night hours may stave off some effects of sleep deprivation Eating less late at night may help curb the concentration and alertness deficits that accompany sleep deprivation