How does social nudity help reduce stress?

There are various ways to reduce stress. You could take prescription tranquilizer drugs, such as anxiolytics, to reduce anxiety. But they can be addictive, and have other undesirable side-effects, as well as expense. Alcohol works too, but certainly has its own problems. Some other recreational drugs also work – but they’re mostly illegal. And if the factors causing your stress remain in place, do you really want to rely indefinitely on prescription drugs, alcohol, or illegal drugs for relief?