YES! Wish I could type YES 1,000 times in response.
As an older grappler (late 30's) let me plead with all you younger guys to start doing yoga...or just buy a yoga book and start doing it on your own if you don't wanna join a class. Also...buy a foam roller and start spinal decompression. Get with a serious powerlifter/bodybuilder/crossfit guy and ask about the foam roller/spinal decompression stuff if you want. I did, and it worked miracles for my lower back and hips.
As you get a bit older, your joints and muscles get less mobile if you don't take care of them. I try to do 10-20 minutes of yoga/stretching/foam rolling after every training session. And I spend one entire day, usually Sunday, doing about 2 hours of 100% body maintenance. Yoga in a hot room, foam roll all the big muscles, stretch everything out, and finish with a 20 minute spinal decompression.
Works miracles, and keeps guys in their late 30's rolling just as hard as when I was in my 20's.