What is the Estrogen Hormone?

Estrogen is fundamentally a steroid hormone, one of the key components of the female reproductive system. However, it is also found in men and plays important roles in both genders. This versatile hormone affects a wide range of body functions, from reproductive health to bone density, and even the regulation of mood.

Functions of the Estrogen Hormone

Estrogen plays a critical role in many body functions, including: 

• Reproductive System: In women, estrogen has a central role in regulating the menstrual cycle and developing the reproductive system. It also promotes the growth of smooth muscles in the uterus during pregnancy.
• Bone Health: This hormone helps maintain bone density, reducing the risk of osteoporosis. It regulates the bone cycle necessary for keeping bones healthy.
• Cardiovascular Health: Estrogen has protective effects on the cardiovascular system. It helps regulate cholesterol levels and increases the elasticity of the blood vessel walls, potentially reducing the risk of heart disease.
• Skin and Hair Health: Contributes to keeping the skin moist, promotes healthy hair growth, and helps delay signs of aging.
• Mood: Estrogen also has important effects on mood. Changes in hormone levels can cause mood fluctuations.

Types of Estrogen

There are three main forms of estrogen: Estradiol, estriol, and estrone.

1. Estradiol is the most dominant form in women of reproductive age and has the strongest effect.
2. Estriol is primarily produced by the placenta during pregnancy.
3. Estrone is the primary form of estrogen in postmenopausal women and is produced in body fat tissue.

Changes in Estrogen Levels

Estrogen Deficiency and Excess

Imbalances in estrogen levels can lead to various health issues. Deficiency can increase the risk of osteoporosis, skin problems, sexual dysfunctions, and cardiovascular diseases. On the other hand, excess estrogen can lead to issues such as an increased risk of breast and uterine cancer. Therefore, maintaining hormonal balance is crucial for overall health.

Frequently Asked Questions

• What is the estrogen hormone and what are its functions in the body?

• Why does the estrogen hormone increase?

The increase in the estrogen hormone occurs when the progesterone hormone is insufficient. Hormonal imbalance can be due to causes such as PCOS, obesity, stress, liver issues, or hormonal medication use. High estrogen levels can lead to menstrual irregularities, breast tenderness, migraines, mood changes, weight gain, fatigue, and even fibroids or cysts. Uncontrolled estrogen increase can increase the risk of uterine or breast cancer in the long term.

• How is the estrogen hormone reduced?

Balancing high estrogen levels may require lifestyle changes and medical intervention. Avoiding processed foods, eating fiber-rich foods, reducing alcohol consumption, and maintaining a healthy weight are important. Exercising can support liver health and facilitate estrogen elimination. Hormonal therapies or birth control pills should be used under a doctor's supervision. 

• How does Polycystic Ovary Syndrome (PCOS) affect estrogen levels?

In women with PCOS, estrogen levels can be high or fluctuate; however, the fundamental issue is often the disruption of the estrogen-progesterone balance. Since ovulation is irregular, progesterone production decreases, causing estrogen to remain high for a long time. This can lead to menstrual irregularities and endometrial thickening. It can also result in oily skin, acne, hirsutism, and weight gain.