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Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

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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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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

This chart shows the various lines of responsibility and how they differ in presidential and parliam This chart shows the various lines of responsibility and how they differ in presidential and parliam
Organ systems of the human body. Organ systems of the human body.
The effects of alcoholism on the body systems. The effects of alcoholism on the body systems.
Sequential blending uses a computer to calculate the correct ratio as well as the prescribed order ... Sequential blending uses a computer to calculate the correct ratio as well as the prescribed order ...
Systems with Three or More Particles Systems with Three or More Particles
Examples of invertebrate nervous systems Examples of invertebrate nervous systems
Video: Haustral churning, Gastrocolic reflex and mass peristalsis & Defecation

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