If you are reading this while sitting, stand up—immediately. Standing up frequently throughout the day can actually lengthen your life, say researchers at the University of Sydney’s School of Public Health in Australia. People who are physically active often think that their workout time is all they need to be in the “healthier” category. Wrong. Even if you work out daily, it’s still a good idea to get out of your chair as often as possible. At a minimum: Get out of your chair for a few minutes at least once every hour.