If you ask a physicist what the biggest unsolved problem facing the field today is, you're likely to get a variety of answers. Some will point to the hierarchy problem, wondering why the masses of the ...

Cerebral palsy (CP) is a group of disorders that affect balance, movement, and muscle tone. “Cerebral” means the disorder is related to your brain, and “palsy” refers to weakness or a muscle problem.

Cerebral palsy (CP) is a group of nervous system disorders that cause muscle coordination problems and other movement issues. It may be caused by injury or infection during pregnancy or during or ...