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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.
There are 60,000 miles of blood vessels in every adult human.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.
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