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Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

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All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

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Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

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Blood is approximately twice as thick as water because of the cells and other components found in it.

The open ocean is the most extensive biome on earth. The open ocean is the most extensive biome on earth.
Nurse bees tending to brood in cells both open and capped with beeswax. Nurse bees tending to brood in cells both open and capped with beeswax.
The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common mo The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common mo
To cleanse an open wound, begin close to the wound and work outward in full or half circles. To cleanse an open wound, begin close to the wound and work outward in full or half circles.
Balloon angioplasty is used to open coronary vessels. Balloon angioplasty is used to open coronary vessels.
Crystal structures of SecY complex in “closed” and “open” conformations Crystal structures of SecY complex in “closed” and “open” conformations
Video: Mitochondrial Structure & ETC Protein Complexes (Protein Complexes and Electron Transport)

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