Fasting is like lifting weights at the gym. You stress your body, then rest and recover, growing stronger and more resilient. The harder you push, the more you gain. But it's important to do it gradually. You don't go to the gym and suddenly lift 500 kg. You increase the weight slowly. Similarly, don’t attempt a 20-day fast out of nowhere. Gradually work your way into longer fasts.
And, of course, as with anything, there’s a point of diminishing returns. Most people don’t need 20-day fasts to improve their health — it's more likely to cause harm. A week or two occasionally can be the ideal length to maximize benefits.
I'm trying the extremes to understand the topic deeply and gain the necessary experience to help you do it effectively. I'm currently working on several fasting guides with all the necessary information, tricks, and secrets.
Let's become healthy together!