While most pet dogs have just a few stress triggers that come and go with just enough frequency to make their day interesting, their unfortunate owners have created a world of constant stress. For teens in particular—who are emotionally charged to begin with and haven’t yet learned to cope with adult stressors—there’s an almost never ending list of stress triggers constantly circling, threatening, taunting. Tests, gossip, competitions, pimples, mean girls, family stress, a learning di...