13d • General discussion
72 Hours No Food! Why?
🔥 I Just Completed a 72 Hour Fast – Here’s What Actually Happens
I’ve just uploaded a video breaking down my 72 hour fast and what was happening inside the body at each stage.
Fasting gets talked about a lot online… but most people don’t actually understand what’s going on physiologically.
So I documented the process and explained the key stages:
0–12 Hours Your body is still running mostly on glucose from your last meals. Insulin starts to drop and your body begins shifting toward stored energy.
12–24 Hours Glycogen stores start to run down. Your body begins increasing fat utilisation and metabolic flexibility starts kicking in.
24–36 Hours Autophagy signalling increases and the body becomes much more efficient at using stored fat for fuel.
36–48 Hours Ketone production increases significantly and many people report improved mental clarity during this stage.
48–72 Hours Deep fat burning mode. Growth hormone levels increase and the body becomes highly efficient at preserving lean tissue while burning stored energy.
In the video I also talk about:
• What the hardest part of the fast actually was• Energy levels and mental clarity during the fast• What surprised me the most• Who should and shouldn’t attempt longer fasts
• How to break the fast properly
Fasting isn’t magic… but when used properly it can be a powerful metabolic tool.
If you want to understand how the body actually responds during a longer fast, watch the full breakdown here.
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72 Hours No Food! Why?
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