Getting in shape isn't easy. But after all that hard work, how long do we actually maintain it? Turns out that even the great effort we put into training, taking a bit of time off can mean that we become "unfit" much faster than it took us to actually get in shape.


원문출처 : https://www.cnn.com/2021/05/31/health/unfit-working-out-wellness-partner/index.html