Feeling sick is part of the body’s attempts to preserve energy for the immune system and make you act in a way that signals to nearby people that you need help
Our skin is covered in invisible stripes. First observed by Alfred Blaschko in the early 1900s, they appeared not to follow any known body system. Visible only under UV light, these stripes now known to be cellular relics of fetal development from singular-cell beings to fully formed humans.
For generations doctors assumed that the appendix had no function. But recently it is determined it “acts as a good safe house for bacteria”. Sometimes bacteria in the intestines die or are purged. The appendix’s job is to reboot the digestive system in that case.
The average human body temperature has been dropping by 1/20 of a degree Fahrenheit per decade, since being established as 98.6 in 1851. The reason is improved health and thus reduced population-level inflammation; heat is a symptom of inflammation.
When drinking alcohol and getting the spins, there will be the feeling of acceleration in a particular direction. As the alcohol wears off, there will be the feeling of acceleration in the opposite direction as alcohol leaves the vestibular system.
Scientists studying the belly button fluff of 60 people found 1,458 bacteria completely new to science. One participant’s fluff contained oil found only in soil from Japan, where he had never visited.
Your nose is always visible to you. Your mind ignores it through a process called Unconscious Selective Attention.
People with cold water being poured into their left ear tend to be less optimistic about their health.
You steadily “dry out” as you age. A newborn human baby is 75 percent water, adult men are about 60 percent, adult women 55 percent, and elderly people are roughly half.
The Sama-Bajau, a sea-faring and nomadic people, have physical adaptations that enable them to see better and dive longer underwater. It was recently discovered that they have evolved bigger spleens that provides a larger reservoir of oxygenated red blood cells.