How does the Chinese exercise of walnuts rotating lead to health?

Walnuts rotating in hand is an idle way of exercise descending from ancient times in China. Inherited from Chinese culture, this mild physical activity has been believed good for health and management of chronic conditions for thousands of years. However, data evidence is not considerable. Recently, walnuts rotating was reported to be beneficial for the treatment of diabetes and dyslipidemia. Furthermore, experiments showed hand function improvement after walnuts rotating training. Walnuts rotating in hand could keep the body in constant status of physical activity, which makes fun and demands little endeavor. And hand-gripping exercise was reported to enhance the release of nitric oxide (NO), which is a conducive agent for chronic conditions, such as pain and cardiovascular problems. More importantly, according to traditional Chinese medicine theory, playing the walnuts enhances body fitness mainly by dredging the meridians and stimulating the acupoints whereon because the walnuts have got many bulges well-touching the acupoints dotted over hands and fingers while moving. Therefore, this exercise may achieve a similar yet constant effect as acupuncture with much less effort and no economic burden. Acupuncture has been confirmed being able to stimulate the production of NO. This study summarizes the benefits of walnuts rotating with the goal of sharing this precious leisure-time sport for fitness and prevention and management of chronic diseases, to the good of the population worldwide.