Stand tall with your legs together. Inhale and raise your arms above your head next to your ears. Exhale and bend forward from your hips, leading with your heart center. Make a straight line with your arms and upper body. Keep exhaling. Bend forward and grab your ankles or calves. For more-advanced options, place your arms behind your knees and hold your elbows or put your hands under your feet, palms up. Hold this pose for about a minute. Breathe slowly and deeply. Then inhale and slowly come back up, keeping your arms and head hanging, until you're standing.
If you have injuries or if you're concerned about exercising, consult with your health care provider before starting a yoga program.