Studies have indicated that fasting, by increasing metabolism and reducing caloric intake, can aid in weight management. Fasting can also increase insulin sensitivity, which makes it an effective strategy for managing type 2 diabetes. Fasting is thought to initiate cellular processes that repair damaged cells and extend life, in addition to controlling blood sugar and weight. These advantages are linked to a process known as autophagy, in which the body eliminates outdated and damaged cells, effectively "cleaning up" to perform better. While there are many health benefits to fasting, it's important to proceed cautiously and consult a healthcare provider, particularly if you're thinking about longer fasts.