Exercise Will Make You Happier

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In The How of Happiness, Dr. Sonja Lyubomirsky tells us:

“An impressive study of physical activity was published in the Archives of Internal Medicine in 1999. The researchers recruited men and women fifty years old and over, all of them suffering from clinical depression, and divided them randomly into three groups. The first group was assigned to four months of aerobic exercise, the second group to four months of antidepressant medication (Zoloft), and the third group to both. The assigned exercise involved three supervised forty-five-minute sessions per week of cycling or walking/jogging at moderate to high intensity. Remarkably, by the end of the four-month intervention period, all three groups had experienced their depressions lift and reported fewer dysfunctional attitudes and increased happiness and self-esteem. Aerobic exercise was just as effective at treating depression as was Zoloft, or as a combination of exercise and Zoloft. Yet exercise is a lot less expensive, usually with no side effects apart from soreness. Perhaps even more remarkably, six months later, participants who had “remitted” (recovered) from their depressions were less likely to relapse if they had been in the exercise group (six months ago!) than if they had been in the medication group. No one in our society needs to be told that exercise is good for us. Whether you are overweight or have a chronic illness or are a slim couch potato, you’ve probably heard or read this dictum countless times throughout your life. But has anyone told you—indeed, guaranteed you—that regular physical activity will make you happier? I swear by it.

Nice! Again: “Has anyone told you—indeed, guaranteed you—that regular physical activity will make you happier? I swear by it.”

A recent meta-analysis showed effect size reductions in symptoms of depression (−0.43) and anxiety (−0.42) are comparable to or slightly greater than the effects observed for psychotherapy and pharmacotherapy (SMD range=−0.22 to −0.37).

Another meta-analysis also compared exercise to psychotherapy and pharmacotherapy, highlighting different types of exercise.