If you have any old injuries, be aware it could aggravate them. I strained my right groin (old injury from high school cross country running) when I was first learning. But it did heal up fairly quickly. Get one of those foam rollers to stretch out the soreness and stiffness in your muscles ... and there are varying opinion on when to stretch. For that matter, there are so many opinions out there on lifting it's ridiculous
And lots of know it all meatheads to go with them, lmao.
That said, you will feel great ... strong, fit, flexible. I have never felt better.
Many people claim it can cure back problems. I don't know about that cause I've never had any. But I can see how it could help.