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Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

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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.

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Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

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The horizontal fraction bar was introduced by the Arabs.

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Vaccines prevent between 2.5 and 4 million deaths every year.

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