This condition is called “smartphone finger ... your pinky and thumb when you’re using your devices. Before you pick up your device, lace your fingers together and push out your arms ...

“Oh, my poor thumb! Wah-wah! I’m such a big baby!” “Oh, shut up,” I replied ... my thumb went out again and I suddenly got pale, and lightheaded, and locked myself in the bathroom ...

There is only one joint in your thumb. Some people with hitchhiker’s thumb can bend this thumb joint backward as far as 90 degrees. There haven’t been many studies carried out on hitchhiker ...