Another substance that can improve performance is human growth hormone,or HGH.

VOA: special.2011.04.12

Another hormone gets produced by the pancreas in response to low glucose levels, it's called glucagon.

胰腺产生另外一类激素,来应对血糖水平降低的情况,它叫做胰高血糖素

耶鲁公开课 - 生物医学工程探索课程节选

All of the molecules are called hormones, so a hormone is another name for a ligand that operates in this endocrine fashion.

这些分子都叫做激素,那么激素就是在内分泌系统中,起作用的配体的另一种叫法

耶鲁公开课 - 生物医学工程探索课程节选