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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.

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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

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Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Sequential decline of whale catches in the Antarctic shows the strong effect of human predators. Sequential decline of whale catches in the Antarctic shows the strong effect of human predators.
Keystone species. Keystone species.
About 80% of all known mollusc species are gastropods (snails and slugs), including the cowry (a sea About 80% of all known mollusc species are gastropods (snails and slugs), including the cowry (a sea
Anatomy Diagram Of Human Body Anatomy Diagram Of Human Body
Climate change is an important vector for human diseases Climate change is an important vector for human diseases
A karyogram of the human chromosome set, showing the distinctive banding pattern of each chromosome. A karyogram of the human chromosome set, showing the distinctive banding pattern of each chromosome.
Video: Stroke volume - contractility definition

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