Intermittent fasting is more or less the same just with a few more things to consider.
More energy while fasting.
Within as little as 12 hours of going without food the body begins to make changes to conserve energy and operate more efficiently explains benjamin horne phd a clinical associate professor in.
Oftentimes when you find energy lacking while fasting you can blame it not on the absence of food but on the absence of movement.
Higher energy levels and less required sleep has been my repeatable direct experience in many many fasts i ve also guided n 10 other indiv.
Light to moderate exercise is generally ok during the fasting period yoga etc but y ou may notice lower energy during an intense work out if it s done in your fasted period.
This is because the body has trouble converting fat into energy fast enough to keep up with the energetic demands of more intense exercise.
While you re fasting your body needs to produce sugar for energy so it begins a process called gluconeogenesis.
In general modern society is quite sedentary.
Fasting actually works to increase your energy in a similar way that exercise does.
You asked why does fasting give some people high energy levels and less required sleep.
Exercise is a natural energy booster because whenever you do it oxygen rich blood surges through your body to your heart muscles and brain regularly squeezing a.
With intermittent fasting the window of eating is decreased and the window of fasting increased.
The body responds to stress via the release of adrenaline a person s natural fight or flight hormone.
Typically the bigger the stress you experience the bigger the adrenal response is.
Registered dietician christopher shuff says there are three considerations when making your workout more effective while fasting.
For example if a lion were chasing you or you were being held.
When you re eating regularly your body breaks down glucose to get the energy it needs to function properly.
Although you can fast for as long or as short as you like certain regimens are more common than others due to their effectiveness and feasibility.