When it comes to buying a new mattress, don?t just jump into bed with the latest model. Experts offer their tips for a better night?s sleep.

  In a new study, nearly three times as many smokers given an experimental vaccine against nicotine quit for one year, compared with those given a placebo.

  Among the most popular songs of 2005, 86% of rap, 37% of country, 20% of R&B/hip-hop, 14% of rock, and 9% of pop portrayed substance abuse.

  In a new study, those who took the statin drug Zocor reported they had a significantly worse quality of sleep than those who took a placebo or Pravachol, another statin drug.

  Driven by huge increases among tween and teen girls, pediatric prescriptions for type 2 diabetes drugs doubled from 2002 through 2005.

  The FDA has approved the atypical antipsychotic drug Abilify for the treatment of schizophrenia in teens aged 13-17.

  Environmentalists warn the average woman's makeup bag is a time bomb waiting to explode with serious health consequences. The cosmetic industry and the FDA say there's nothing fear.

  Seeking to respond to public concern over food safety, Bush administration officials announced plans to boost government oversight of imported and domestic food.

  Obesity leads to insulin resistance and diabetes, but not if a key inflammatory pathway is blocked, mouse studies show.

  Fasting on a regular basis may protect against heart disease, researchers report.

  An experimental vaccine may someday free people with high blood pressure from having to swallow their medication every day.

  Harris Poll: Nearly all Americans say we know how to avoid heart attacks -- but most of us don't know our cholesterol or blood-fat numbers.

  New research from the CDC confirms that people who carry a few extra pounds have a lower risk of death than those who are normal-weight, extremely underweight, or obese.

  Older adults who are obese develop more disabilities that interfere with daily living than older adults who are normal-weight or slightly overweight, according to a new study.