Pregnant women who are overweight and obese can safely reduce their weight by eating a healthy diet to reduce the risks of complications for themselves and their baby.
Having naturally high levels of "good" cholesterol doesn't lower the risk of heart attacks as believed.
The antibiotic azithromycin, which is widely used for bronchitis and other common infections, seems to increase chances for rare sudden deadly heart problems.
Coffee drinkers can be reassured about the health risks of enjoying their cup of java, doctors say.