How Your Bad Habits Affect Your Health
‘Crack’ Your Knuckles
It doesn’t just annoy your friends and co-workers – it may not be very good for you, either. A substance called synovial fluid keeps your joints moving easily. The sound your knuckles make when they “crack” comes when you pop tiny bubbles in that fluid. If you do it all the time, you’re more likely to have swollen hands and a weaker grip over time. It doesn’t seem to raise your chances of arthritis, though.