Joe Brownstein

Fitness trackers are becoming increasingly popular, but do these wearable devices actually do what they claim? Researchers in Iowa put 7 commercial fitness trackers to the test.

People who used a fitness tracker to help their weight loss efforts lost more weight and kept it off, compared with people who didn't use the devices, a new study shows.

Public health messages aimed at increasing vaccination rates may actually make parents less likely to vaccinate their children, new research finds.

The weather may influence people's risk of stroke, a new study finds.

A drug called bumetanide aimed at eliminating autism symptoms in people with certain forms of the condition is showing promise in the early stages of research.

People who have a certain variant of a gene may face an increased risk of Parkinson's disease if they are exposed to pesticides, according to a new study.

Far from being simply a "swimming pool" for sperm, seminal fluid may play a key role in the health of a male's offspring, according to a new study in mice.

Women with higher levels of fish oil in their blood tend to have larger brains, a new study says.

The debate over whether alcohol or marijuana is worse for health has been reignited by comments President Barack Obama made in a recent interview. Here's a look at what science has to say.

While the new finding may not push Alice's hookah-smoking insect from its psychedelic pedestal, this caterpillar is pretty snazzy, as it puffs out nicotine to ward off hungry wolf spiders.

Flu Vaccine May Work Better in Women

An experimental treatment protects the insulin-producing cells in Type 1 diabetes sufferers, researchers say.

Energy drinks may negatively affect heart rhythm and blood pressure, according to a new study.