(HealthDay News) -- If you've had a cough that's lasted at least eight weeks, you may have a chronic cough. The best way to treat that cough depends on its cause.

(HealthDay News) -- With the correct sleep environment comes the chance of a more serene and restful night's sleep.

TUESDAY, Sept. 25 (HealthDay News) -- A class of drugs commonly given to children undergoing tonsillectomy is not likely to increase the risk of serious bleeding after surgery, according to a new U.S. study.

WEDNESDAY, Sept. 26 (HealthDay News) -- Declining donor funding is one of the reasons most of the world will not meet the United Nations' Millennium Development Goals for women's and children's health by 2015, according to a new report.

WEDNESDAY, Sept. 26 (HealthDay News) -- Doctors who have a gut feeling about a serious infection in a child should take action on that intuition, according to a new study.

WEDNESDAY, Sept. 26 (HealthDay News) -- Actress Julie Bowen, awarded her second Emmy Sunday for her role in the hit TV comedy "Modern Family," starts a more serious role today: raising awareness about life-threatening childhood allergies.

TUESDAY, Sept. 25 (HealthDay News) -- Obese children appear to develop risks for heart disease usually not seen until adulthood -- putting their health in jeopardy as they age, British researchers report.

WEDNESDAY, Sept. 26 (HealthDay News) -- Infants in urban areas have different patterns of viral respiratory illness than those in the suburbs, which may explain why inner-city children are more likely to develop asthma, a new study suggests.

WEDNESDAY, Sept. 26 (HealthDay News) -- Long before Hollywood introduced the concept of "Mean Girls," people knew that childhood can be full of name-calling, manipulation and we-won't-talk-to-you freeze-outs. Now, a new study finds that "social bullying" isn't just a real-life phenomenon. It's also common in the TV shows popular among kids aged 2 to 11.

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