SUNDAY, July 25 (HealthDay News) -- Playgrounds are great places for children to get exercise and have fun, but parents need to take steps to protect youngsters from potential dangers, says the American College of Emergency Physicians.

SATURDAY, July 24 (HealthDay News) -- People who feel insecure in their relationships may be at increased risk for cardiovascular disease and other health problems, according to a new Canadian study.

SUNDAY, July 25 (HealthDay News) -- Extreme summer heat can place older people at increased risk for developing the dangerous high body temperature condition known as hyperthermia, experts at the U.S. National Institute on Aging (NIA) warn.

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