06 Jan 2023 --- As intermittent fasting grows in popularity, a new study has investigated how it affects the body on a molecular level and its impact on human organs. The results show that restricting the eating window impacts 22 regions of the body and the brain, with potential benefits for cancer, heart disease and hypertension. While tested on mice following a high-calorie diet, the two groups were divided into a time-restricted eating window of nine hours or access to food at any time.