Tag Archives: MRI

MRI Scan Reveals Why Knuckles Crack

The room is knuckles cracking 3quiet and the only sound is that of pencils scratching answers on papers as everyone focuses on the exam. Then the silence is broken by the unmistakable sound of someone cracking their knuckles.┬áScientists now know why knuckles make that distinct popping sound when cracked. Continue reading “MRI Scan Reveals Why Knuckles Crack” »