Do you know what your hormone levels are? Should you? Your body is home to more than 50 hormones — chemical messengers that compose the endocrine system — and hormonal changes may reflect any number ...

Major League Baseball will test players' blood for human growth hormone during the season starting this year, becoming the first American sport to do so and continuing the league's stand against ...

Growth hormone helps children grow in height and supports healthy metabolism. When a child does not have enough of this hormone, their growth may be slow. This is sometimes called growth failure.

Researchers are reporting the first scientific evidence that a hormone banned in sports can boost athletic performance. The improvement from human growth hormone was modest, and only in sprinting. It ...

THEY might be mini, but your hormones are seriously mighty. These chemical messengers have a huge role in your body’s key functions, from mood and energy to skin, weight and how well you ...