Men who want to boost their sperm counts may want to swap their tight-fitting underpants for more roomy boxers which are better suited to keeping testicles cool, scientists say.
A major study into the impact of underwear on sperm quality found that men who favoured airy boxer shorts made significantly more sperm than those who tucked themselves into more restrictive items of underwear.
The reason something as sensitive and important to the very purpose of life as testicles are outside the body is?
Quite, that they work better at slightly lower than body temperature.
If they worked better at it then we’d be descended from those whose remained safely tucked away up where the ovaries sit and where they themselves start out. We’re not and they don’t.