health research

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Study: Teen Pot Smokers Turn Out A-OK

Results of 22-year study are 'a little surprising,' say researchers

(Newser) - Previous studies have found teen marijuana use could result in cancer, asthma, respiratory problems, and psychotic symptoms like delusions and hallucinations over time. That's why researchers say the results of a new long-term study following teen pot smokers into their 30s are "a little surprising." Researchers who... More »

Antibacterial Soap Ingredient Spells Trouble for Muscles

Triclosan inhibited muscle function of human heart cells in test tubes

(Newser) - If you're an antibacterial-soap junkie, it might be time to cut back. A three-part study suggests triclosan, a common chemical found in such products, slows muscle function in both human and animals. A paper published yesterday outlines the experiments: Scientists exposed human heart and skeletal muscle cells to levels... More »

High-Fructose Corn Syrup Can Also Make You Dumb

'Alters your brain's ability to learn and remember information,' says researcher

(Newser) - Too much high-fructose corn syrup could do more than just make you fat : It could also make you stupid. A new study on rats found that after just six weeks on a high-fructose diet, the rats’ brain synaptic activity had been so affected that they had trouble recalling a maze... More »

Prostate Cancer Treatment May Be Game-Changer

Ultrasound cuts side effects in study

(Newser) - A promising new treatment for early prostate cancer may free men from worrying about the common side effects of impotence and incontinence associated with traditional treatments. A study of 41 men published in Lancet Oncology found a "perfect" outcome (no cancer, no side effects one year later) in nine... More »

An Aspirin a Day Cuts Cancer Risk

And appears to stop cancer from spreading, too: studies

(Newser) - A daily low dose of aspirin has long been recommended as a way of lowering stroke and heart attack risk, but new studies published this week suggest it also greatly reduces cancer risk. The UK studies found that after taking 75mg to 300mg of aspirin per day for just three... More »

Your New Drug: Placebos

They seem to work even when patients know what they're getting

(Newser) - Placebos aren't just for research: Studies increasingly show that treatments with no active ingredients can work as well as—or even better than—"real" therapies. In one such study, some hotel employees were told they were getting good exercise at work; they lost weight, while fellow workers who... More »

Time to Replace Calorie Counts With Exercise Warnings

One cola requires hour's run to work off

(Newser) - If we want kids to understand the health impact of soda, we should drop the calorie counts from the cans and replace them with exercise notices, a study suggests. The cans should warn potential buyers, for example, that they'll need to run for 50 minutes to work off that... More »

Feds Halt Chimp Research

NIH's temporary measure follows critical report

(Newser) - A new report suggests that the use of chimpanzees in health research is rarely justified, and the National Institutes of Health has taken it to heart. The organization has placed a temporary ban on using chimps in new research, "effective immediately," the Washington Post reports. A committee will... More »

Singles Face Earlier Death

Single men have particularly high risk

(Newser) - Woody Allen may have called marriage the "death of hope," but staying single can literally be fatal. A new study shows that people who don't tie the knot are likely to die earlier, and have a higher risk of dying across a lifetime, than those who are... More »

It's True: Fatty Foods Make You Happier

Chowing down when depressed may just be instinct

(Newser) - There’s a reason we gorge on chocolate bars or French fries when we’re down: Fatty foods actually do make us feel better, a study suggests. Scientists in Belgium had subjects look at images of sad people and listen to sad music while being fed through a tube, the... More »

Disturbed Sleep Hurts Memory

Brain needs deep sleep to decide what to retain

(Newser) - Interrupted sleep can have adverse effects on our memories, a study suggests—a theory that could help explain memory troubles among sleep apnea and Alzheimer’s patients. Researchers disrupted sleep in mice using specialized light techniques, the BBC reports, and the mice later had more trouble recognizing objects that should... More »

Air Pollution Tied to Brain Damage

May cause learning and memory troubles, depression: Study

(Newser) - Air pollution isn’t just a threat to the heart and lungs: It can also affect learning, memory, and mood, researchers find. They exposed mice to extended periods of polluted or filtered air, and found that those exposed to pollution were slower to learn, quick to forget, and possibly more... More »

Scientists Find Connection Between Nicotine, Weight

It helps tells the brain to stop eating

(Newser) - For some smokers, the threat of weight gain is a deterrent to quitting—and now, scientists think have finally discovered the link between the two. Nicotine binds to receptors on brain cells, including those in the hypothalamus that tell your body when your belly is full, reports AP . Scientists gave... More »

So Do Pickles Really Cause Cancer?

Relax: your local brand is probably fine

(Newser) - The World Health Organization is sounding the alarm about yet another possible cancer-causer: your cell phone. But far less ominous items also crowd that list, including, yes, the humble pickle. Chinese studies have shown that populations which suffer a certain esophageal cancer also depend on fermented veggies for long periods... More »

Why We Can't Remember Being 2

Researchers investigate the science of early memories

(Newser) - Why is it that we struggle to remember events from before we were 3 or 4 years old? Canadian researchers found that 4- to 6-year-olds remembered events from age 2 or younger as their “earliest memories,” but two years later had largely forgotten them and named a different... More »

No Need for Guilt: Gossip Helps Us

It can actually protect us, researchers say

(Newser) - Gossip needn’t prompt guilt: It’s an evolved self-protection technique, scientists say. Researchers showed subjects images of people and provided a little information about them, some of it banal, some of it positive or negative gossip, the Daily Mail reports. An image of a person was then placed in... More »

HIV Vaccine Works in Monkeys

Called 'unprecedented' step forward in AIDS research

(Newser) - Big advances in AIDS research are hard to come by—but researchers in Oregon say their new vaccine marks a huge step forward. In a study of HIV’s monkey equivalent, the researchers found that 13 of 24 rhesus macaques given the vaccine were protected against the disease; 12 were... More »

Coffee, Sex, Nose-Blowing Linked to Strokes

Exercise can also trigger ruptured aneurysm, study finds

(Newser) - A new study suggests some strange stroke risk factors: coffee, sex, exercise, and ... nose-blowing? All could lead to a burst blood vessel in the brain. The activities increase blood pressure, which boosts the risk of a ruptured aneurysm, says the Dutch study of 250 patients over three years. Coffee triggered... More »

Stressed Out? You'll Learn Better

Stress hormones alter brain cells, aiding in memory storage

(Newser) - If studying for exams stresses you out, be glad: It could help you remember the material, a study suggests. Hormones produced when we’re stressed, like cortisol and adrenaline, help us store memories by altering the way our brain cells work, reports the Telegraph . The hormones “reprogram” DNA in... More »

Spring Births Linked to Higher Anorexia Risk

Those born in fall in least danger, study suggests

(Newser) - Those born between March and June face a higher risk of developing anorexia, a study suggests. Oxford scientists reviewed the birthdays of 1,300 people with the eating disorder and found “clear evidence” leading to their conclusion, the New York Post reports. September and October produced the fewest anorexia... More »

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