The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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Cyanide works by making the human body unable to use oxygen.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
The Many Faces of Life (Part 2)
The Processes of Synaptic Pruning (Part 2)
Venn Diagram of Nervous System and Endocrine System
Female Reproductive System
The Digestive System
Illustration of the Spinal Nerves (a) Laterally and (b) Posteriorly. The Ganglia Are Detailed as Wel