A strong back is a safe spine.

Never be afraid to take on strength in your training. All those HIIT and boot camp workouts are great for making you sweat but terrible at helping you build a bulletproof body.

Want to avoid all those back issues everyone seems to have? Then focus on building muscles that support your spine. The only way to do that is too put those muscles under resistance with control and intent, not 1,000,000 reps.