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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.

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Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

The pineal gland is a part of the thalamus region of the brain. It secretes melatonin. The pineal gland is a part of the thalamus region of the brain. It secretes melatonin.
Optic nerve, optic chiasm, ¬thalamus, and visual cortex. Optic nerve, optic chiasm, ¬thalamus, and visual cortex.
Osmometric Thirst in Humans Osmometric Thirst in Humans
cyclic nucleotide regulated potassium channel cyclic nucleotide regulated potassium channel
Negative feedback control of a regulated variable. Negative feedback control of a regulated variable.
The Thalamus The Thalamus
Video: Condensation and Hydrolysis Animation

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