When you exercise outdoors, there is a more natural connection between you and the environment. ... Endorphins are generated in the body during exercise, which leads to better emotional health.
B) The species would decrease in number and eventually die off.
Why? -- Proof, why and how does the alternative and complementary medicine work in terms of current understanding of medicine/anatomy/science
advantages to skepticism, reduction of people getting conned into paying into a false medical treatment
disadvantage to skepticism, the particular alternative treatment may actually work however the exact mechanism is not yet known and may be dismissed as psuedo-science
I would say A. HMO hope this helps