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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
There are more nerve cells in one human brain than there are stars in the Milky Way.
Vaccines prevent between 2.5 and 4 million deaths every year.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
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