# 527 - What happens when you fast for 3 days

What happens in the body when you fast for 3 days is jawdropping. In this episode I detail hour by hour exactly what happens inside your body from the moment you take your last bite of food, and in doing so I highlight what the benefits of doing a brief fast like this are to your health. We talk about your glucose, insulin, and glycogen levels and how they are affected by your fast, plus when and how fat breakdown starts to occur. We introduce the term ketosis where in response to your fast your liver converts fatty acids into ketone bodies for fuel. After 12 hours glycogen reserves are spent. We hear about the cell cleaning process called autophagy which is one of the main benefits of fasting, and this kicks in between hours 18 to 24 of fasting. Mental clarity appears to be one of the additional benefits of fasting too, while insulin sensitivity is also enhanced, which will allow your cells to handle glucose more efficiently once you resume eating. After 36 hours a regenerative switch flips in your immune system as old white blood cells are broken down. Damaged mitochiondria are cleared out improving cellular efficiency. Ketone production reaches a peak and IgF-1 a growth factor is suppressed, authophagy winds down. Despite all these changes arising from a brief fast, its not true to suggest that fasting will reset your digestive system as some influencers have claimed. Fasting will reduce inflammation and improve your lipid profile and more. A short term fast is NOT a fat loss tool, nor is its a detox, nor will it help with gut issues such as IBS. Any fast should be done in consultation with a medical professional especially if you have any history of disordered eating. The dangers of high carbohyrate foods : https://www.youtube.com/playlist?list=PLSKlhyEANfi8hZFoFoJun_lLhULcYg5JWWeightloss series : https://www.youtube.com/playlist?list=PLSKlhyEANfi-pO3W2hejnDUsgMQ9GPvpZThe health benefits fo exercise : https://www.youtube.com/playlist?list=PLSKlhyEANfi_vM1nbpcV-PlvWjSZ872ECOrder Happy Habits for Mind and Body Audiobook: https://amzn.to/3KeQmGrOrder Kindle copy of Happy Habits for Mind and Body : https://amzn.to/4c9T38fOrder US paperback of Happy Habits for Mind and Body : https://amzn.to/4bxczeTOrder UK paperback of Happy Habits for Mind and Body : https://rb.gy/jtfea5Listen to all previous podcast episodes of the Happy Habit Podcast via these podcast platforms :Apple Podcasts https://podcasts.apple.com/ie/podcast/happy-habit-podcastAmazon https://www.amazon.com/Happy-Habit-Podcast/dp/B08K5887J8Amazon music : https://music.amazon.com/podcasts/670836c2-ea4c-4a23-a67d-a54dd804ef61/happy-habit-podcastSpotify https://https://open.spotify.com/show/2VKIhQK6mYTzLCO8haUoRdFollow the Happy Habit Podcast Website: https://happyhabitpodcast.wordpress.com/Music used is Purple planet Music crediit goes to them