KUSA - We're challenging the 9NEWS morning crew to change their lives, for a week. Amelia got us started last week by going Vegan. This week, it's Gregg's turn as he explores the world of yoga.

We showed videoof Gregg doing some of his first-ever downward dogs at home over the weekend,with the helpof a Yoga for Beginners video. Not bad for a first timer.

Gregg is going to continue practicing, after work at home all this week. We'll check in with him, as well as with some yoga professionals we're pairing him up with on his progress.

Gregg is giving yoga a try after learning about some of the benefits of having a regular practice. According to yoga experts:

-Even a short series of poses helps raise the levels of the brain chemical GABA which leads to a sunnier outlook. Low levels of that chemical are linked to depression.

-Posing improves posture and strengthens back muscles and minimizes aches.

-Insomniacs who have tried yoga fell asleep 15 minutes faster and slept an hour longer each night after committing to a regular series of poses.

-Yogahelps boost confidence. Those who practice regularly rate their body satisfaction 20 percent higher than those who took aerobics.

Practical Advice For Beginners

Yoga experts say deciding that you want to start doing yoga is the first step. It's easy to get stuck here, though. Don't be intimidated!

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Change your life: Gregg tries yoga