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The risk of heart disease in women associated with being overweight or obese is reduced but not eliminated by higher levels of physical activity, according to a new article. Both obesity and physical inactivity are modifiable risk factors for coronary heart disease.

Age at menopause may now be predicted more realistically according to a new study. The study revealed that anti-Müllerian hormone (AMH) levels are related to the onset of menopause and are able to specify a woman's reproductive age more accurately than chronological age alone. The levels of AMH in the blood reflect the number of small follicles present in a woman's ovaries. This follicle stock enables reproduction by ensuring monthly ovulations. Depletion of the stock leads to menopause, which normally occurs between 40 and 60 years of age.

Researchers have developed innovative technology which illuminates a person's lungs and helps clinicians identify if they are functioning correctly. The new technology could result in earlier diagnosis of emphysema and smoking related damage, as well as other lung conditions and diseases.

A novel cell therapy using retinal pigment epithelial cells attached to tiny gelatin bead microcarriers implanted in the brain can improve the symptoms of patients with moderate to advanced Parkinson's disease.

Scientists have discovered a method for remote sensing of the physiological and emotional state of human beings. The researchers believe the discovery could theoretically help remotely monitor medical patients, evaluate athletic performance, diagnose disease and remotely sense the level of excitation -- which could have significant implications for technology in the biomedical engineering, anti-terror and security technology fields.

A widely used class of diabetes medications appears to be associated with an increased risk for fractures, according to a new article. After adjusting for other risk factors, individuals who were currently taking rosiglitazone and pioglitazone had approximately double or triple the odds of hip and other non-spine fractures than those who did not take these drugs.

A research group has uncovered a new route for attacking the human immunodeficiency virus that may offer a way to circumvent problems with drug resistance. Researchers have blocked HIV infection in the test tube by inactivating a human protein expressed in key immune cells.

An analysis of studies involving the use of hemoglobin-based blood substitutes indicates their use is associated with an increased risk of death and heart attack, according to a new article.

The idea of going blind is a frightening thought for anyone. Recent work to restore visual function during retinal degenerative diseases resulting in complete loss of photoreceptors that enable vision, has created hope that retinal diseases leading to blindness may one day be reversed.

How frequently do doctors misdiagnose patients? While research has demonstrated that the great majority of medical diagnoses are correct, the answer is probably higher than patients expect and certainly higher than doctors realize. A collection of articles and commentaries sheds light on the causes underlying misdiagnoses and demonstrates a nontrivial rate of diagnostic error.