The number of deaths worldwide from malaria has been underestimated, according to data published in the medical journal the Lancet.

Abnormalities in the brain may make some people more likely to become drug addicts, according to scientists.

Research which suggests that patients are more likely to die in hospital if they are admitted at the weekend is backed up by a major study.

Three British men die and three more people remain in hospital after contracting Legionnaires' disease while on holiday in Spain, a tour company says.

A record number of potentially dangerous new legal highs were found in Europe last year, say doctors.

A new study shows obese physicians are less likely to discuss obesity with patients and to diagnose them as being obese. So, should you consider a doctor's looks when choosing a physician? Nancy Cordes and Jeff Glor asked Dr. Holly Philips and body image coach Emme.

Author Jane Velez-Mitchell on steps an alcoholic or drug addict must take to avoid relapsing

Working long hours linked to depression; Ultrasounds could be the key to male birth control; And, a special "What the Health" segment on babies, from CBSNews.com's Nick Dietz

American Heart Association spreads awareness for number one killer for women