Health Tip: Take Kids for a Nature Walk

(HealthDay News) -- To help children disconnect from TV, video games and light-up toys, go outside for a nature walk and get some exercise.

Health Tip: Using the Web for Health Information

(HealthDay News) -- While the Internet can be a great source of health knowledge, it is important to make sure that you're getting sound advice from a trusted source.

Irregular Heart Rhythm Ups Stroke Risk Soon After Heart Surgery

MONDAY, July 21, 2014 (HealthDay News) -- People who are older than 65 who've had a stroke or heart valve surgery, or who have known blood vessel disease, have an increased risk of stroke after heart surgery, a new study finds.

HIV Diagnoses Down in U.S., Except for Young Gay Males: CDC

SATURDAY, July 19, 2014 (HealthDay News) -- A new report offers good and bad news about the AIDS epidemic in the United States: The annual diagnosis rate of HIV, the virus that causes the disease, has dropped by one-third in the general population but has climbed among young gay and bisexual males.

Smoking While Pregnant Linked to ADHD in Children

MONDAY, July 21, 2014 (HealthDay News) -- Children born to women who smoked during pregnancy appear to have an increased risk of developing attention-deficit/hyperactivity disorder (ADHD), according to new research.

Good Schools May Be Good for a Teen's Health, Too

MONDAY, July 21, 2014 (HealthDay News) -- Low-income teenagers who get into a more rigorous high school may take fewer health risks than their peers at other schools, a new study suggests.

Waistlines of U.S. Kids Seem to Be Holding Steady, Study Finds

MONDAY, July 21, 2014 (HealthDay News) -- The waistlines of America's children and teens may have stopped expanding, a new study indicates.

Common Genes Implicated in Autism Study

SUNDAY, July 20, 2014 (HealthDay News) -- Most of the genetic risk for autism appears to come from common gene variants rather than spontaneous gene mutations, according to a new study.

Scientists Discover New Way to Make Human Platelets

MONDAY, July 21, 2014 (HealthDay News) -- Scientists report they have discovered a new way to make fully functional human platelets, which are the blood cells that form clots.

Health Highlights: July 21, 2014

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay: