“Happiness is simply not the appropriate response to many situations in life, says Brinkmann, whose Danish bestseller Stand Firm: Resisting the Self-Improvement Craze…

“Evidence shows that people of color — black and Latino in particular — are much less likely to be diagnosed with ADHD, even though they show symptoms at the same rate as white people. And if they are diagnosed, they…

“So why, to so many people, does the phone seem like a scarier option than texting? After all, a typed message is also stripped of all those nonverbal cues. But with written communication, at least, you have time…