#4 Cracking your knuckles leads to arthritis
Some of us just love cracking our knuckles and it became a habit. But have you heard your mom discouraging you from cracking your knuckles for fear that it might lead to arthritis? Other than knuckles, we do hear an occasional popping sound from other joints in our body – knees, elbow etc. Cracking your knuckles is akin to the popping sound you hear from your knees when you stretch out your legs – it’s painless and harmless! Sound is created when you apply pressure on your knuckles, bursting the bubble of nitrogen gas that was trapped in the fluid of your joints. However, if cracking your knuckles produces pain, do consult a doctor as there might be abnormalities in your joint.