By the end of the week, Alex's hunger has stabilized. The 4-hour eating window (e.g., 2 PM to 6 PM) feels natural. On the final day, Alex feels lighter and more focused. Research suggests that even short-term fasting like this can lead to clinically significant weight loss improved blood pressure Key Takeaways for "20:4" Fasting Insulin Regulation
: Fasting for 20 hours helps lower insulin levels, making it easier for the body to access stored fat Mental Performance : Many practitioners report enhanced mental flexibility and focus during the fasting hours. Safety First : While effective for many, prolonged fasting can lead to loss of lean muscle mass dfast 20 7 work