Interesting facts about the human body


The human body is an incredibly complex and intricate system, one that still baffles doctors and researchers on a regular basis despite thousands of years of medical knowledge. As a result, it shouldn’t be any surprise that even body parts and functions we deal with every day have bizarre or unexpected facts and explanations behind them.

Your body does a million things and sometimes we aren’t even aware of it – like digesting breakfast, growing new skin, and carrying oxygen to cells from head to toe and ear to ear. Here are some interesting things you could learn about your body:

Why You Get Squiggly things in Your Vision

These dots or squiggly lines that are sometimes visible off to the sides of your visual field are called “eye floaters”. They float around and then dart out of sight immediately if you try to get a good look at them.

It Happens Because...

Your eyes mostly consist of a jelly called vitreous fluid, and this gel goes through many changes as you age. As it gradually shrinks, it loses its smoothness and starts to look stringy. The vitreous can also become more liquid, and this permits tiny fibres in your eye to come together and form (relatively) large clumps. The clumps get big enough to become visible and freak us out, ultimately it shrinks down and settle at the bottom of your eyes where you can’t see them. In the end they really are your friends for life.

Why Cold Foods Cause "Brain Freeze"

Ever wondered why you often or even once in your life got brain freeze while enjoying a cold treat such as ice cream or icy drinks. The word quite summarises the experience – you’re halfway through a tasty desert or drink and suddenly your head hurts with a sharp pain.

It Happens Because...

Research pointed out that brain freeze could be triggered by simply placing an ice cube in a person’s mouth and pushing it to the top of the palate, which confuses the brain’s thermostat. The brain wants to keep a constant temperature, and by placing cold treats etc. in your mouth, your palate becomes chilled and your brain goes into distress. The brain then opens up arteries to pump more blood to the area to warm it up. The increased blood pressure causes an “ice cream headache”.

What to do

The only known way of getting rid of brain freeze is to warm up the top palate of your mouth and constrict those arteries back to normal size. Sometimes pressing your tongue against the top of your mouth can help.

Some quick and interesting facts:

  • You are taller in the morning than in the evening.
  • Your stomach manufactures a new lining every three days to avoid digesting itself.
  • By the age of eighteen your brain stops growing.
  • Sweat doesn’t smell bad. A foul-smelling “body odour” is caused when the skin bacteria feed on sweat. Their waste products are what smell bad.


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