https://www.eurekalert.org/pub_releases/2021-03/uob-aig032921.php

Variety in Activities Better

A March 2021 study by the University of Basel suggest that, 

"activity alone is not enough to reduce symptoms of mental disorders, but can at least improve subjective well-being,” and that a variety of activities is better.

"Although the data were collected before the pandemic, the results are also relevant in light of the limitations during the coronavirus crisis,"