Receptors are proteins on the outside surfaces of cells that can attach to hormones found in the blood.

They contain a higher dose of the hormone found in ordinary birth control pills and are most effective if taken within five days after sexual intercourse.

Leptin is an important hormone found in the bodies of many animals.

Plan B contains a higher dose of the same synthetic hormones found in the combination pill.

Saliva hormone testing is an effort to determine the amount of hormones found in saliva.

Margo analyzes the fungus and finds that it is loaded with concentrated hormones found in several animal species.

Testosterone is one of the most important, but commonly misrepresented hormones found in the body.

Plan B is made from a synthetic hormone found in regular oral contraceptives.

In fact, one Japanese study examined the prevalence of hormones found in saliva that serve as stress indicators.