Taking too much, especially if you have immune system problems, is trouble for your health.
Fluctuating oxygen levels in women with the condition impact the hormone that controls blood pressure.
With just a drag, nicotine receptors in the brain send chemicals that cause feelings of happiness and comfort.
People with a cancer history are 40 percent more likely to have memory problems than healthy people.
Do chest compressions first, then check the airway and do mouth-to-mouth breathing, according to new guidelines.
The findings go against previous studies that show a link between fish oil and improved brain abilities in children.
Kids whose moms had low serotonin levels were more likely to have ADHD than kids whose moms had normal serotonin levels.
Health experts hope to understand Web-surfing behaviors and motivations of those at risk of suicide.
If you look a little old for your age, that doesn't necessarily mean you have poor health, a new study finds.
As body searchers and pat-downs get more personal, the risk increases for transmission of microbes, a microbiology professor says.
Pregnant women who eat peanuts are more likely to have babies who test positive for peanut allergies than women who don't eat peanuts, according to a new study.
The FDA announced today that alcoholic beverages with added caffeine are illegal and dangerous. Experts explain why these drinks pack such a punch.
A deletion in the human genome can increase a person's chance of developing autism or schizophrenia by 14 times.
From social marketing to the Internet, HIV prevention experts spread messages of safe sex and clean syringe use.
Kids with chronic kidney disease who are born at a low weight have a poorer growth rate than kids born at normal weight.