8. After addiction, withdrawal from the use of caffeine can cause mood swings and irritability, similar to the symptoms of withdrawing from a narcotic or alcohol. 9. Consuming as little as 200mg of caffeine every day can lead to addiction and altered chemistry in the brain.
Progestin is a form of progesterone, a hormone that plays a role in the menstrual cycle and pregnancy. Progestin is used in combination with another hormone called estrogen in combined hormonal birth control pills, the vaginal ring, and the skin patch.
Other names for progestin-only oral contraceptives are minipills and progestin-only pills (POPs). Progestins can prevent fertilization by preventing a woman's egg from fully developing. Also, progestins cause changes at the opening of the uterus, such as thickening of the cervical mucus.ther names for progestin-only oral contraceptives are minipills and progestin-only pills (POPs). Progestins can prevent fertilization by preventing a woman's egg from fully developing. Also, progestins cause changes at the opening of the uterus, such as thickening of the cervical mucus.