Day 7: Recovery
This means relax — really. Foam roll, stretch, get a massage. Do not go for long, taxing walks, attempt strenuous chores, or play a pickup ball game. If you're doing it right, you'll need (and want) the rest.
You may feel a little banged up, particularly if you're making a comeback from the couch. While your muscles may not be used to these efforts (or these kinds of varied efforts, if you're a one-sport athlete), they adapt faster than you think. In the next days, the fibers will repair, your lung capacity will edge up, and the second go-round will feel easier.