Human Body Facts for Kids
Surprising facts about your body
The knee is the largest and most complex joint in the human body, held together by four main ligaments and cushioned by cartilage and fluid-filled sacs.
Growth hormone is released mainly during deep sleep, which is why children tend to grow the most whilst they are asleep.
Your eardrum is a thin membrane that vibrates when sound waves hit it, converting sound into nerve signals your brain can understand.
Your adrenal glands sit on top of each kidney and produce adrenaline — the hormone that triggers your body's 'fight or flight' response to danger.
White blood cells are the soldiers of your immune system — they identify, attack, and destroy bacteria, viruses, and other harmful invaders.
Humans share about 96% of their DNA with chimpanzees, our closest living relatives, reflecting how recently our evolutionary paths diverged.
Your tongue is not one muscle but a group of eight muscles working together, making it one of the most flexible and manoeuvrable structures in the body.
Tonsils are part of your immune system and act as the first line of defence against germs that enter your body through your mouth and nose.
In a lifetime, the average person will walk about 100,000 miles — the equivalent of walking around the Earth more than four times.
The first vertebra of your spine, called the atlas, supports the weight of your skull — just like the mythological Titan Atlas held up the sky.