I was told that you break down muscle fibers with resistance training and build the muscles back when you sleep (provided you have enough protein). What about fat burning? Do you burn fat while you work out? Sleep? I understand you lose weight when there is a calorie deficit but when does it actually happen?
In: Biology
Every time you flex a muscle, it tears a little.
Your body is constantly working to repair that damage. The more than muscle tears (through more use or more intense use) the body tries to build it back stronger. It doesn’t necessarily just happen during sleep. It does continue to happen during rest, but it doesn’t only happen during sleep.
Your body constantly needs a supply of glucose to keep operating. Normally, it gets that from breaking down carbohydrates you ate, but when there are extra carbohydrates, that glucose can be stored as fat. If there isn’t a supply of carbohydrates being digested, the body has to switch to start breaking down that stored fat to power your body. It’s basically a process that slows down when you have food that’s being digested, and speeds up again when you’re nearly done digesting the food.
Do not starve yourself to achieve this, that is dangerous. Simply eat less, particularly fewer carbohydrates. Drinks with lots of sugar are particularly bad for that. Sport drinks should be used to keep your energy up for long periods of exercise or activity where you need that energy, not for when you want to burn fat.
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