Will Jiu Jitsu be really hard on my body? And is it violent?

People who do Brazilian Jiu Jitsu are never the ones to start fights. They're the ones who do everything in their power to avoid fights. But if a fight has to happen, they are ready to defend themselves. So no, Brazilian Jiu Jitsu is not violent. As far as your body goes, the exercise involved may be tough for you at first. But you're welcome to go at your own pace. This isn't the army or anything! We're here to support you and help you succeed. It may be hard, but not enough to cause injuries. It is just hard enough to form a great calorie-burning workout.