Menopause and Hormones 101

If you’re experiencing symptoms of menopause, you are probably wondering about hormones. Everyone is talking about hormones these days. So here’s a quick crash course in the ones that affect your body.

Let’s start with the three estrogens.

1. Estradiol: Estradiol is produced primarily in the ovaries and is the most potent of the 3 estrogens. This estrogen will decrease significantly during menopause or after removal of ovaries. This estrogen is responsible for the symptoms that most associate with menopause.
2. Estrone: Estrone is produced primarily from fat tissue and muscles. This estrogen is the second most potent. It will be elevated in women who are overweight and has been linked to the accelerated growth of breast cancer among other things. In fact, this hormone is best left out of hormone replacement regimens.
3. Estriol: Estriol is the weakest of the 3 estrogens. It is dominate during pregnancy and has been linked to breast cancer protection.

There are several other hormones that you’ll hear about.

• Progesterone: Progesterone is the counterpart to estrogen. Where estrogen promotes growth, progesterone promotes maturation or stabilization. Progesterone is dominant in the latter half of the menstrual cycle. Progesterone has been shown to have PMS, anti-depressant and anti-anxiety benefits. Simply put, progesterone balances estrogen.
• Testosterone: Yes! Women have testosterone too. It is produced primarily from the ovaries before menopause. After menopause, it is primarily produced by the adrenal glands. Testosterone has well known libido benefits.
• T4: This thyroid hormone is produced in the thyroid gland and released for circulation. It can be replaced with such medicines as synthroid and levothryoxine. Low T4 can be a result of iodine deficient diets.
• T3: This is the most potent of the two thyroid hormones and is produced from the conversion of T4 in the liver and kidneys. T3 is present in the medicines armour thyroid and cytomel.
• Cortisol: Produced in the adrenal glands, cortisol is released in large response to stress. High cortisol levels promote slow metabolism and fat storage. Prolonged stress and high cortisol levels, can result in adrenal exhaustion and low cortisol levels. Low cortisol levels cause fatigue and other symptoms that can mimic depression.

ZRT Laboratory has an interactive graphic that is very helpful in giving you an overview of most hormones your body produces.