1 clenching your jaw or grinding your teeth during sleep (bruxism) â which overworks the jaw muscles and puts pressure on the joint (often caused by stress) 2  wear and tear of the inside of the jaw joint â usually caused by osteoarthritis.  injury to the jaw joint â for example, after a blow to the face or surgery.
On November 1, 2014, maximum fines for cell phone and/or texting use while driving will increase (for cell phone and texting violations committed on or after November 1, 2014): For a first offense, $50 to $200. For a second offense committed within 18 months, $50 to $250.
Despite the risks, the majority of teen drivers ignore cell phone driving restrictions. Talking on a cell phone while driving can make a young driverâs reaction time as slow as that of a 70-year-old. 56% of teenagers admit to talking on their cell phones behind the wheel, while 13% admit to texting while driving.