Imagine going on a first (or third) date—and discovering that the person across from you, who had seemed so promising, has some terrible habit that makes you shudder to your core. Cue instant repulsion, or what’s called “the ick.” Though you may want to bolt, psychologists say it shouldn't always be a deal-breaker.
If you want to optimize your workouts to get the widest range of benefits, you might want to try exercising in the morning. (Originally published in 2019.)