Gunnar Peterson

SleepScore Max empowers me to identify my own sleep issues and gives me advice for better sleep to maximize my performance every day. It's critical to measure and quantify improvements while training.

Everybody comes in with a certain goal. Some are performance, some are aesthetic. Even athletes have aesthetic goals, but first and foremost, they have performance goals, and those need to be addressed. They have weaknesses that need to be shored up. You have to manage expectations sometimes.

If you're always trying to do a good job, then something good is going to come from it.

Make it a joint effort. Doing a workout with a partner or trainer can motivate you to reach your goals.

People tend to shy away from rotation with resistance because they think they're going to get hurt. Like, 'If I move in that motion with that weight, I'm going to pull my back.' But you're not.

Multi-joint movements - squats, push-ups, bent over rows - all put a greater metabolic demand on the body and can be effective when performed with very light weight to get you back up and running. Think bigger movements, not bigger weight, when you are on the mend.

Hydration is everything. Think of this: your muscles are 70-plus percent water - how are you not drinking water during a workout? I get the whole, 'Let's challenge ourselves; let's do that prison, tough guy thing,' but at the end of the day, you're underperforming.

I really like battle ropes. They're so versatile; you can get a terrific workout doing a ton of different exercises with them. My clients like them because they're a good way to get aggression out, too. Had a bad day? Take it out on the ropes!

Kellan Gillis was the first celebrity that I worked with - that didn't hurt. Working out after that with Jennifer Lopez was huge in terms of just the platform it gives you. So I think when you get those opportunities, you have to be respectful of them, and you have to try not to just cash out.

The thought of being active in my kid's lives motivates me.

If you were inactive due to an injury or a surgery, then common sense rules the day when inching closer to the area that was hurt. That is very different from inactivity due to being ill. After illness, be aware of how taxing your workout is cardiovascularly and err on the side of less.

The key to anyone's success is staying with it!