Is progressive supranuclear palsy hereditary?

a rare disease that gradually destroys nerve cells in the parts of the brain that control eye movements, breathing, and muscle coordination.

Yes

Bell's palsy or Facial Paralysis occurs on one side of the face as a result of an inflamed seventh cranial (facial) nerve; generally lasts only 2 to 8 weeks but may last longer in older individuals....

No CP is a non-contagious, non-progressive, disorders that affect human development and result in physical disabilities. So, no it doesn't get any worse than it already is.

not.