According to a massive review published in the journal Frontiers and Pharmacology that reviewed all randomized controlled trials published from 1999–2016, and most or all meta-analyses/systematic reviews published from 2009–2016, researchers concluded by saying, “exercise is an evidenced-based medicine for depression.” (1)
Science Shows This Amount of Walking Per Day Improves Brain Function
And in a 2018 review of 98 randomized controlled trials evaluating over 11,000 older adults, researchers found that exercise clearly has immense benefits on brain health, especially in adults who already have mild cognitive impairment (3).