What Happens When I Crack My Knuckles?

The video explains that knuckles don't crack but pop due to a gas bubble forming between bones. The sound is from the bubble bursting, though the loudness remains unexplained. Frequent knuckle cracking can lead to joint swelling and reduced grip strength over time.

What is the actual cause of the sound when you 'crack' your knuckles?

• Bones rubbing against each other

• A bubble of gas forming and bursting

• Muscles stretching

• Tendons snapping

Why do scientists believe the knuckle cracking sound is produced?

• From the movement of ligaments

• Because of a bubble of gas forming and popping

• Due to the friction between bones

• As a result of muscle contractions

What remains unknown about the sound of knuckle cracking?

• Why it is so loud

• How long it lasts

• What causes the bubble to form

• Why it only happens in some people

How long does it take for the knuckle to return to normal after cracking?

• A few seconds

• A few minutes

• At least half an hour

• A few hours

What is a potential long-term effect of frequent knuckle cracking?

• Stronger grip strength

• Improved joint health

• Swollen joints and reduced grip strength

• Increased flexibility