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Articles on Menstrual cycle

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Like natural hormones, known as endogenous hormones, the artificial hormones contained in the pill, known as exogenous hormones, can have effects on the brain. (Shutterstock)

The contraceptive pill also affects the brain and the regulation of emotions

Oral contraceptives modify the menstrual cycle. What’s less well known is that they also reach the brain, particularly the regions important for regulating emotions.
These effects may have the greatest impact on elite athletes. Leonard Zhukovsky/ Shutterstock

How periods and the pill affect athletic performance

Some evidence shows that hormonal fluctuations throughout the menstrual cycle can both increase and decrease athletic performance.
Progesterone doesn’t seem to cause the blood clots, heart diseases and breast cancer associated with estrogen-dominant menopausal hormone therapy. (Shutterstock)

Hot flashes? Night sweats? Progesterone can help reduce symptoms of menopause

Science shows that many perimenopausal miseries — such as hot flashes, night sweats and trouble sleeping — are caused by excess or variable estrogen, not by “estrogen deficiency.”

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