You know that satisfying neck crack after a long day? For KayLynne Felthager, it turned into a total nightmare. She stretched her neck to relieve a headache and ended up having a stroke days later—her vision went out, her body went numb, and she literally couldn’t speak. Turns out, cracking your neck (even without your hands!) can cause an artery dissection and a stroke. She’s fine now, but says she’ll never crack her neck again. Who else is rethinking their habits right now? #Health #BodyHealth #HealthWarning