Your Health

The wave of mass shootings in the U.S. is renewing a debate over treating gun violence as a public health issue. Congress has stood in the way of federal funding for studying injuries and deaths.

Young doctors being trained at dozens of hospitals around the country are being asked to work up to 30 hours straight as part of a study. Critics say the study is risky and unethical.

The unusual meeting was called to consider a ban on certain uses of a new technique that can make precise changes in DNA. The main concern is altering genes in human sperm, eggs and embryos.

The number of people being diagnosed with diabetes has been on the decline since 2009, after soaring for decades. Doctors say people may be changing their eating and exercise habits for the better.