WEIRD WORLD OF THE HUMAN BODY
WHY DO THE PEOPLE WE FANCY SMELL NICE?
A pleasing smell is a sign that the object of your affection has an immune system that's different from yours
DO SUNGLASSES CAUSE SUNBURN?
SKIN colour changes when you are exposed to the sun because your body is told to produce more melanin - skin pigment - by your pituitary gland.
But the pituitary gland only knows how much melanin to make from the signals it gets from the eye. If the eye says it's sunny, the pituitary gland goes into overdrive.
But with shades on, the gland is fooled so less melanin is produced - meaning a higher risk of burning.
DOES SUN LOTION HURT YOUR BONES?
WHEN most of us are exposed to the cold for a long period of time, we need to go to the loo.
WHY DO WE GO TO WORK WITH A COLD?
HOW DO SEX DISEASES SPREAD SO EASILY?
WHY ARE THE GREEKS HAIRIER THAN AFRICANS?