" Movement offers us pleasure, identity, belonging and hope. It puts us in places that are good for us, whether that's outdoors in nature, in an environment that challenges us, or with a supportive community. It allows us to redefine ourselves and reimagine what is possible. It makes social connection easier and self-transcendence possible.
Each of these benefits can be realized through other means. There are multiple paths to discovery and many ways to build community. Happiness can be found in any number of roles and pastimes; solace can be taken in poetry, prayer or art. Exercise need not replace any of these other sources of meaning and joy.
Yet physical activity stands out in its ability to fulfill so many human needs, and that makes it worth considering as a fundamentally valuable endeavour. It is as if what is good in us is most easily activated or accessed through movement. As rower Kimberley Sogge put it, when she described to me why the Head of the Charles Regatta was such a peak experience, "The highest spirit of humanity gets to come out." Ethicist Sigmund Loland came to a similar conclusion, declaring that an exercise pill would be a poor substitute for physical activity. As he wrote, "Rejecting exercise means rejecting significant experiences of being human. "

― Kelly McGonigal , The Joy of Movement: How Exercise Helps Us Find Happiness, Hope, Connection, and Courage