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Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Barbara McClintock, who discovered transposable elements. Barbara McClintock, who discovered transposable elements.
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When exercising outdoors, especially on a hot, sunny day, it is important to stay adequately hydrate When exercising outdoors, especially on a hot, sunny day, it is important to stay adequately hydrate
Video: Contraction cycle of a sarcomere

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