Whether you’re shedding pounds with the help of effective new medicines, slimming down after weight loss surgery or cutting calories and adding exercise, there will come a day when the numbers ...

Little is known about the Denisovans. But a new study is revealing how these enigmatic ancient humans survived in the Tibetan plateau, one of Earth’s most extreme environments.

How sound waves work. Sound waves are a type of energy that’s released when an object vibrates. Those acoustic waves travel from their source through air or another medium, and when they come ...

Some go off the drugs after they hit their plateau. When they do, they tend to regain the weight they lost. “This is not the magic drug that folks like to tout that it is,” Ms. Meinecke, 52, said.