Jaw pain possibly caused by intensely frowning and clenching at all my problems was ruining my life a tiny bit. Massaging the temple above the painful side of my jaw daily and convincing myself to smile and release the tension in my eyebrows has helped. Pro is that when you are consistently rubbing your temple in public you look like you’re solving a tricky thermodynamics equation or some equally thoughtful activity. If this is you, it also helps to sleep on your back so your teeth can‘t grind as easily.