Palin shared several clips of herself over an eight-day period that illustrated the progression of her facial paralysis, with the TV personality reflecting at one point, "It's so

According to John Hopkins Medicine, Bell's palsy is "an unexplained episode of facial muscle weakness or paralysis. It begins suddenly and can get worse over 48 hours. This condition results from damage to the facial nerve (the 7th cranial nerve). Pain and discomfort usually occur on one side of the face or head."