Among many kinds, intermittent fasting (IF) has proven to be an effective approach to maintain and improve a healthy lifestyle. Fasting can be done to lose weight, detoxify the body, or for religious reasons. Scientifically, there has been a large amount of research that supports health benefits driven by fasting. Even though it has been largely tested only on animals, the results are still promising. Fasting reduces oxidative stress, improves memory function, preserves learning, and enhances biomarkers of disease.