There are more nerve cells in one human brain than there are stars in the Milky Way.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
