If you want to build strength but are intimidated by weights, try yoga.Yoga isn't just all about relaxation, meditation and new-age chanting. Well, it can be, but it depends on what type of yoga you're signing up for. Ashtanga or power yoga practices can be great at helping you sculpt and tone your muscles while shedding fat from your waistline. And under the instruction of a qualified yogi, heading to a yoga class for your strength training is far less intimidating than trying to navigate you way around weight machines -- not to mention body builders -- at the gym.

But you won't just gain strength -- you'll come away from your yoga class more relaxed and flexible too. It's a win-win situation.