"The research literature demonstrates that sitting in certain positions, all by itself, has a pronounced effect," says Epstein. Sit anywhere. Relax your shoulders so that they are comfortably rounded. Allow your arms to drop by your sides. Rest your hands, palm side up, on top of your thighs. With your knees comfortably bent, extend your legs and allow your feet, supported on heels, to fall gently outward. Let your jaw drop. Close your eyes and breathe deeply for a minute or two.