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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?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

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Video: Types of synapses - electrical & chemical

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