- The combined hormonal contraceptive pill is the second most popular form of contraception in the United States, besides condoms.
- Ethinyl estradiol has been used in the contraceptive pill since it was first created 60 years ago.
- Researchers have discovered that rats given this hormone exhibited more behaviors associated with anxiety, compared to a more natural estrogen used in a more modern form of the contraceptive pill.
Rats given synthetic estrogens used in birth control pills exhibited…
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