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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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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

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Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

A herd of Roosevelt Elk in Redwood National and State Parks, California A herd of Roosevelt Elk in Redwood National and State Parks, California
The Sleep/Waking Flip-Flop According to Saper et al. (2001), the major sleep-promoting region (the v The Sleep/Waking Flip-Flop According to Saper et al. (2001), the major sleep-promoting region (the v
Every state has a two-letter abbreviation. Every state has a two-letter abbreviation.
The Decline of Two-Parent Families The Decline of Two-Parent Families
How Urban Is Your State? The Rural-Urban Makeup of the United States How Urban Is Your State? The Rural-Urban Makeup of the United States
Structure of retroviral genomes in the integrated state Structure of retroviral genomes in the integrated state
Video: HIV replication/ Replication cycle of HIV

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