How to Do a Back Handspring. The back handspring is a basic building block for many gymnastics or cheerleading routines. To do a back handspring, you have to fall backwards, land upside-down on your hands, and push upwards to land back on your feet.
BRAIN TEASERS. Riddles brain teasers exercise your brain! Check out our insane collection of brain teasers for kids and all ages. Increase your mental strength today by digging through our brain teaser riddles and games. Think laterally.
Deep brain stimulation is a promising but as yet unproven treatment for cluster headaches that don't respond to other treatments. Because this involves placing an electrode deep in the brain, there are significant risks, such as an infection or hemorrhage.