Studies have revealed that juggling actually increase gray matter in the brain, which is responsible in part for forming new memories. Juggling activates several areas of the brain and awakens dormant ones. This activity requires pattern recognition, spatial orientation and motor skills so you not only work your brain but your body too. Studies also promise that you do not have to become proficient to reap the benefits of juggling, since the advantages come from practicing the skill and not from becoming great at it.