In the 80s, this was called warming up.

Walking only 17 minutes a day could extend your life, experts say

"Walking did the best job at preventing death from respiratory disease; six hours a week of walking led to a 35 percent lower risk of death compared to those who did not do any physical activity.

Another benefit? Walking improves mental health, reduces depression and improves cognitive function. Psychology Today called the results “a landmark study,” pointing out that another study released this month showed that one hour of exercise a week — at any intensity — helps prevent future depression."