The risk for developing a rare form of brain cancer known as glioma appears to go up with long-term use of hormonal contraceptives such as the Pill, new Danish research suggests.
Birth control pills are synthetic forms of the hormones progesterone and estrogen taken by women to prevent pregnancy. The birth control pill prevents ovulation by maintaining more consistent hormone levels. Without a peak in estrogen, the ovary doesn't get the signal to release an egg, which eliminates the possibility of fertilization and pregnancy. READ MORE