Please list the various phases in Intermittent Fasting ordered by when they occur after starting the fast, and provide a description of what happens in the body during each phase in about 150 words for each.
change_case:english_lowercase detectable_format:number_highlighted_sections keywords:forbidden_words length_constraints:number_paragraphs keywords:frequency length_constraints:number_words startend:quotation
health
less than
relationships
at least
All letters in your response must be lower case letters Make sure to highlight at least 2 sections in your answer with markdown, i.e. use *highlighted section* The words health cannot be in the response Please reply in details, and include exactly 3 paragraphs. Separate the paragraphs with *** Mention the word "relationships" for less than 2 times Keep your entire response at least 13 words or less. Your answer need to be wrapped in double quotes