Typical symptoms of motor tics include involuntary (uncontrolled) muscular movements of the mouth or eyes, head twitching, and shoulder shrugging. Examples of less common, complex tic symptoms are bending over to touch the floor, smoothing clothing and jumping.
The cast of the sci-fi blockbuster has become extremely close. Since they first filmed Star Trek in 2007, they've stuck together, and are able to celebrate their upcoming film -- in style. NEWS: 'Star Trek Beyond' Stars John Cho and Sofia Boutella Share Silly Dubsmashes With Late Co-Star Anton Yelchin.
As Star Trek fans celebrate the original series' 50th anniversary, take a look at what some of the biggest stars from the series are up to now. Shatner played the role of Captain James T. Kirk, the charismatic captain of the USS Enterprise, leading his team of crew to memorable adventures in the original series.