The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
Medication errors are three times higher among children and infants than with adults.
Did you know?
Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
Did you know?
During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
Did you know?
Cyanide works by making the human body unable to use oxygen.
Cardiac pacemaker. The pacemaker device is implanted beneath the skin near the heart, and the electr