After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Did you know?
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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The longest a person has survived after a heart transplant is 24 years.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
Brain Cells
The Split-Brain Operation
Smelling with a Split Brain
Fall & Injury Prevention Mnemonic
The limbic system is located within the higher brain, or cerebrum.