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Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

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A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

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There are 60,000 miles of blood vessels in every adult human.

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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Skin of an African (left) and Asian (right) elephant. Skin of an African (left) and Asian (right) elephant.
Cross-section of skin and a hair follicle. Note the shaft of the hair, the root, and papilla Cross-section of skin and a hair follicle. Note the shaft of the hair, the root, and papilla
Gate Control Theory, Gate control, Open gate, Closed gate, Pain, Nerve transmission of pain, Pain ma Gate Control Theory, Gate control, Open gate, Closed gate, Pain, Nerve transmission of pain, Pain ma
Cardiac pacemaker. The pacemaker device is implanted beneath the skin near the heart, and the electr Cardiac pacemaker. The pacemaker device is implanted beneath the skin near the heart, and the electr
When the engine is cold and before the oxygen sensor is hot enough to achieve closed-loop, the ... When the engine is cold and before the oxygen sensor is hot enough to achieve closed-loop, the ...
Skin layer diagram Skin layer diagram
Video: Regulation of GFR: autoregulation via tubuloglomerular feedback, neural & hormonal regulation

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