This Is What Happens When You Stop Doing Yoga

What happens to your body if you opt out of your yoga practice depends entirely on the kind of yoga you are doing. If you're involved in a more vigorous form of yoga, LiveStrong says that counts toward strength training, particularly if it targets all the muscle groups in your body. Vinyasa, Ashtanga, or power yoga can even be considered moderate-intensity cardiovascular training. 

So if you do a demanding type of yoga, your body will respond the way it might with strength or muscle building routines. Your muscles will become larger and stronger, the number of small blood vessels — or capillaries — increase, and you end up developing a more defined mass. 

If you give it up, though, it won't exactly make your muscles turn to fat or disappear, but it will make your muscles shrink and decrease in mass because your cells don't need the increased blood flow anymore. You could also gain some weight if you eat more than your body needs to keep going, but your muscles will only atrophy if the quality of your nutrition suffers and you regularly eat things that are bad for you.