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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

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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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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

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Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Gangrene of the toes and foot as a result of an infection often means eventual amputation. Gangrene of the toes and foot as a result of an infection often means eventual amputation.
Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do
Dyspnea Dyspnea
A sphere represented by means of modeling. A sphere represented by means of modeling.
Signs and symptoms of breathing difficulty. Signs and symptoms of breathing difficulty.
Temperature Means and Ranges Temperature Means and Ranges
Video: Genetic distance between human groups

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