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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.
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.
Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.
Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
There are more nerve cells in one human brain than there are stars in the Milky Way.
![The grand opening of the huge Miraflores lock on the Panama Canal in October, 1914. The locks were b](https://biology-forums.com/gallery/47/medium_6_02_03_16_7_45_22_234071402.jpeg)
![Everyday situations sometimes present opportunities for children to build information processing ...](https://biology-forums.com/gallery/47/medium_667187_21_02_17_7_13_13_256711128.png)