Many of exciting discoveries in all fields of science are connected to the human body. From the DNA chain to the atoms within our cells, human body represents a source of numerous miraculous facts. Human body is unbelievably complex and complicated system that still puzzles doctors and researchers, despite thousands of years of medical work.
As a result, there should not be any surprises that even body parts and function that we perform every day or bizarre facts and explanations are strange for some of them. Our body can do amazing things. The list is long, but here are 10 facts about it that you probably did not know.
10FACT No 10
Digestive acid is strong enough to dissolve zinc. It only stays contained because our stomach cells replace themselves faster than they can be destroyed.
09FACT No 9
Your lungs have around 500.000.000 alveoli that allow oxygen into the blood. There are also 1.500 miles (2400km) of airways in them – the distance from Seattle to San Diego.
08FACT No 8
Women have more sweat glands than men, however, men produce more sweat. Different “sweats” are chemically district. Stress sweat smells the worst.
07FACT No 7
THE BRAIN is two percent of our body weight, but takes 20 percent of the body’s oxygen and calories. A blockage in any of the three arteries carrying this energy to the brain results in a stroke.
06FACT No 6
The appendix isn’t completely useless. Beneficial bacteria stay in the appendix during diarrhea, emerging to repopulate the intestines when they have been purged.
05FACT No 5
Humans glow in the dark, emitting light due to the chemical reactions in the body. The light s 1000x weaker than the HUMAN EYE can see.
04FACT No 4
When sleeping, a normal male has an erection every 2-3 hours. It is thought this is the brain giving the penis a workout to check that everything is working.
03FACT No 3
You are taller I the morning by about half an inch (1.27cm). Excess fluid is replenished between our spinal discs at night and lost each day as our spine is compressed by being vertical.
02FACT No 2
Ridges in the brain were gained as humans evolved and our brains grew. To ensure it still fit in skull, the brain folded on itself, creating ridges and crevices known as gyri and sulci.
01FACT No 1
Human hair, pound for pound, is as strong as Kevlar. Around 150.000 strands of hair (a full head of hair) are enough to support two elephants, or two tons.