If you've never done hatha yoga before, instructor Vera Paley is your gal. She specializes in teaching novices (though she teaches intermediate levels too) in a way that's, well, awe-inspiring. Watch Paley do the shoulder stand, the frog, the fish, the spinal twist, and you'll be saying, "Hey, if she can do it, I can too." After all, Paley, our role model for old (whatever that is), turned 80 last year. Maybe that's why her favorite line is, "You're never too old -- or young -- to do yoga." (Some of her newest students are older than she is.) Another favorite line, "You're only as young as your spine is flexible." Meaning: If you can't sit on the floor with your legs stretched out and touch your forehead to your knees, you know whom to call.