UK health organization Benenden made this video to show how exercise has changed in the last century.

Fitness sure has come a long way in the past 100 years. We've made enormous strides since the simple stretches of the 1910s, and today, people are more out of shape than ever. I guess it's time to go back to those simple stretches. After all, they've helped this lady not age in 100 years.

Sources: Benenden UK