Overweight and obese women need to exercise about an hour a day, five days a week, to lose weight and sustain it, a new study has found.

Researchers from the University of Pittsburgh and colleagues tracked 201 overweight and obese women over a two-year period. The participants were randomly assigned to one of four groups based on how much and how intensely they exercised and how many calories they burned

Consumption of as much as two fruit juices a day could increase the risk of diabetes in African-American women by almost a third, a new study suggests.

The study, published in the Archives of Internal Medicine, tracked 43,000 participants in the Black Women's Health Study for a decade to find out how drinking patterns affected diabetes risk. Women who had fruit drinks including Kool- Aid, fruit punch, Snapple and juices were 31 percent more likely to develop type 2 diabetes than those who did not

Outside medical experts for the Food and Drug Administration (FDA) on Tuesday recommended approval of Roche Holding AG's drug Actemra to treat moderate to severe rheumatoid arthritis.

The drug is more effective at reducing symptoms of rheumatoid arthritis than existing biologic agents, which are dominated by a type of drug known as anti-TNFs. The new drug will target the drug for patients who failed anti-TNFs, such as Johnson & Johnson's drug Remicade and Abbott Laboratories' Humira, DowJones reported

HIV rates among American blacks are higher than those in impoverished nations that are part of a $15 billion AIDs programs from the United States, and nearly equal to those of African nations, a new report said on Tuesday.

"More Black Americans are infected with HIV than the total populations of people living with HIV in seven of the 15 countries served by PEPFAR [President's Emergency Plan for AIDS Relief]," Black AIDS Institute chief executive Phill Wilson said in a statement

A new study has linked higher hip bone mineral density (BMD) or having stronger bones to the risk of a woman developing breast cancer.

Researchers from the University of Arizona College of Public Health here tracked health records of 9,941 postmenopausal women who took part in the Women's Health Initiative, a long-term women's health study. The women were 63 years old on average at the start of the study and got a check-up that included a hip bone mineral density scan using dual-energy X-ray absorptiometry (DXA)