If a female is at her birth age, she needs to keep about 18% body fat. Women
with low body fat often do not produce sufficient amounts of sex hormones.
These women can experience a cessation of menstruation, known as amenorrhea.
So if you don't have a child yet, don't play with your hormones too much.
j***w 发帖数: 5379
19
我200磅时测了说体脂正常，岂不成了肌肉男了，不用减肥了？肯定灰常不准。
Q*****i 发帖数: 102
20
我是用公司健身房的仪器测的 33%。 是个挺大的机器，有两个感应器，用手抓住for
about 30 seconds.
