Amanda Chan

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.

Relatives had increased risks of brain, lung, prostate, breast, urinary tract and ovarian cancers.

Environmental stressors can turn on cells' genes when they're supposed to be off.

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.

Alexithymia, a condition that makes it hard to convey emotions, is linked with hypogonadism in men.

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.

Video-chatting is changing the face of doctor-patient communication.

Eats on Feets group links moms who need milk with moms who have plenty to spare.

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.

Group says FDA decision is overreach by government.

Scientists are trying to find a topical cream for humans that can induce melanin production.

From social marketing to the Internet, HIV prevention experts spread messages of safe sex and clean syringe use.

Stem cells are transformed into neurons to show researchers the biology of autism.

Kids with chronic kidney disease who are born at a low weight have a poorer growth rate than kids born at normal weight.

The high levels of antioxidants in the fruits have cancer-fighting properties.