Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting | science facts

Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting


Cracking your knuckles (or any of your joints) can have therapeutic benefits. When you crack one of your joints you are pulling the bones that are connected at the joint apart from each other. This process stimulates your tendons, relaxes your muscles, and loosens your joints. Chiropractors do this for spinal joints when your back is sore and stiff, but you can do this on your own for your knuckles, toes, knees, neck, etc.

Tongue possesses receptors that can sense different tastes | Science based life

Science based life


On your tongue you possess receptors that can sense, very generally, the following tastes:
Sweet – usually indicates energy rich nutrients
Umami – the taste of amino acids (e.g. meat broth or aged cheese)
Salty – allows modulating diet for electrolyte balance
Sour – typically the taste of acids
Bitter – allows sensing of diverse natural toxins