Humans

Health & Medicine

2016 election stressed out some teens and young adults

Some teens and young adults felt stress, anxiety and fear during the 2016 election — no matter what political candidates they tended to prefer.

Health & Medicine

Scientists offer new explanation for knuckle-cracking

That annoying pop may come from the partial collapse of bubbles in the joint fluid.

Computing

Computers mine online reviews for signs of food poisoning

Health officials are getting help in identifying restaurant goers who got food poisoning by teaching computers to scout social-media posts for signs of illness.

Health & Medicine

Analyze This: The power in being understanding of your flaws

Expecting nothing but perfection from yourself can lead to depression. Forgiving yourself after mistakes can lower your risk of feeling bad, a new study finds.

Animals

Light at night lengthens how long birds can spread West Nile virus

Light at night prolongs the time it takes these birds to knock out a West Nile infection. Mosquitoes that bite them during this time can pick up and spread their virus to others — even people.

Animals

Compared to other primates, humans get little sleep

Short bouts of a sleep, called REM, separate humans from other primates, scientists find. Sleeping on the ground may have a lot to do with it.

Health & Medicine

Scientists Say: Lactose

You might not think of dairy products having sugar, but they do. Milk is rich in a sugar called lactose.

Brain

Bullying alters ‘bugs’ in the gut, hamster data show

A new study found that the microbes in a hamster’s gut changed in response to social stress.

Health & Medicine

Finding and helping teens for whom sadness is a disease

Adolescents should soon be screened for depression at their yearly check-up with their doctor.

Climate

Analyze This: Climate change could make food less healthy

Levels of important nutrients are lower in crops exposed to high levels of carbon dioxide, a greenhouse gas. How high? Try levels expected to be typical 30 years from now.

Health & Medicine

Woman’s eye hosts more than a dozen cattle eyeworms

Oregon woman is the first human known to become infected with a cattle eyeworm known as Thelazia gulosa.

Health & Medicine

Sleep helps wounds heal faster

Getting enough sleep may be more important for helping wounds heal than getting good nutrition, a new study finds.