Every part of your body — from your brain to your heart — needs hormones.
They’re your body’s “chemical messengers,” according to the Hormone Health Network.
“The glands of the endocrine system send out hormones that tell each part of your body what work to do, when to do it, and for how long,” the organization reported.
There are many different hormones and each contributes to different processes over time, including growth, physical development and sexual function.
The key reproductive hormones are estrogen and progesterone for women and testosterone for men. They’re all required for good sexual health and reproduction, but they can also affect things like energy level, weight and mood.
These hormones need to be balanced to work well, but their levels decrease as you age. This often causes many physiological changes.
How estrogen and testosterone work
Estrogen and progesterone are produced mainly by the ovaries “in a cyclical fashion, which results in a monthly period,” said Dr. Caitlin Dunne, an infertility specialist at the Pacific Centre for Reproductive Medicine in Vancouver.
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