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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Did you know?
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.