Smoking may provide an explanation for reduced fertility, results of two studies suggested.

Kids who eat food cooked in nonstick pots and pans may have higher levels of LDL cholesterol, a large cross-sectional study found.

A combination of four factors appears to significantly increase the risk of opioid dependence among patients taking prescription painkillers, researchers have found.

A daily coffee habit may counteract aortic stiffness in older adults with hypertension, researchers reported.

The diabetes drug pioglitazone (Actos) carries cardiac risk similar to that found for embattled sister compound rosiglitazone (Avandia), according to an analysis of an administrative claims database.

STOCKHOLM -- Vitamin D status can predict outcome in patients with heart failure, according to a study to be presented here next week at the annual congress of the European Society of Cardiology.

Increased exposure to a chemical common to food and drink packaging predicted higher testosterone levels in men, suggesting the chemical bisphenol A (BPA) effects endocrine changes in men.

Patients who have migraine headaches face heightened long-term risks of cardiovascular disease and death.

Women who averaged one alcoholic drink a day had almost double the risk of hormone-sensitive breast cancer of nondrinkers.

Blood samples from more than 80% of patients with chronic fatigue syndrome were found to have viral gene sequences similar to those of murine leukemia virus (MLV).

CT colonography identified almost 80% more high-risk lesions compared with optical screening by adding extracolonic findings.

Brothers of prostate cancer patients have higher rates of the disease and higher rates of clinically insignificant cancer because they have more diagnostic tests.