Exercising One Arm Has Twice the Benefits (IMAGE) Edith Cowan University Caption Exercising one arm has twice the benefits. Credit Photo by Kelly Sikkema on Unsplash Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.