Going that long is extreme and should definitely be medically supervised to make sure you're getting the correct nutrition supplements. People do go that long on a routine as well but they have to build up to it and be very careful coming out of it to avoid refeeding syndrome

In this context they're looking at the extreme specifically for treating cancer patients

It's far from definitive, but here's an article on Diabetes.co.uk

>A study published in February [2017] reported that cyclical fasting helped to repair beta cells in mouse models of type 1 diabetes. This may be due to the fact that autophagy is often followed by a massive boost in stem cells that can replenish or replace beta cells destroyed by autoimmune processes with healthy cells

When your body enters a fasting state it will begin a process called Autophagy, the process of cleaning up old and damaged cells in your body

This process has a number of beneficial long term effects such as lowering cancer risks, elimination of latent viruses and pathogens hiding in older cells, triggering stem cell production, etc.

Another study about this effect, though this is using longer fasting cycles the benefits still apply for IF

https://news.usc.edu/63669/fasting-triggers-stem-cell-regeneration-of-damaged-old-immune-system/

>The study has major implications for healthier aging, in which immune system decline contributes to increased susceptibility to disease as people age. By outlining how prolonged fasting cycles — periods of no food for two to four days at a time over the course of six months — kill older and damaged immune cells and generate new ones, the research also has implications for chemotherapy tolerance and for those with a wide range of immune system deficiencies, including autoimmunity disorders

Yup, better to seek help from a therapist to understand how to manage/understand what the cause of the issue is first, and working with a licensed nutritionist to follow a plan if you're trying to lose weight

The article clearly defines what forms of renewables are projected to overtake coal and nuclear though. I'm not sure how you started talking about ethanol

>The government energy tracker predicts that wind, solar and hydro will generate 22 percent of U.S. electricity by the end of this year. That is more than coal at 20 percent and nuclear at 19 percent.