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Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

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The horizontal fraction bar was introduced by the Arabs.

Ancestral versus shared derived characters involving morphological traits. Ancestral versus shared derived characters involving morphological traits.
Cold versus the Flu Cold versus the Flu
Normal artery versus plaque formation Normal artery versus plaque formation
Alzheimer’s Disease Alzheimer’s Disease
Amyloid plaques (stained blue) in the brain of a deceased patient who had Alzheimer’s disease. Amyloid plaques (stained blue) in the brain of a deceased patient who had Alzheimer’s disease.
Tianducheng versus Paris Tianducheng versus Paris
Video: Mechanisms of capillary exchange (transcytosis & bulk flow)

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