Glycogen is the most efficient form of energy storage. This is because the energy is stored in the form of glucose can be easily converted into glucose to be used by the body.
Primarily the energy is stored in the form of glycogen only. It is stored in the liver and muscle cell of the body.
The energy required to break the bond of glycogen to convert into glucose is less as compared to other macromolecules.
Lipids are fat molecule which contains mainly triglyceride made up by the body when extra energy is consumed. Body store lipids to provide energy to the body when there is no glucose left to provide the energy so it acts as a energy reserve.
It is the most efficient form of energy storage because it can provide more calory of energy per gram than protein and carbohydrate.1 gm of lipid can yield 9 kcal while 1 gm of carbohydrate only yields 4 kcal.
So body can go long(weeks) without food due to the energy provided by stored lipids. Glycogen can only provide energy for one or two days.
Explanation: I live in the states and 36°f is about 2° celsius (assuming that’s your country’s preferred unit of measuring temperature), which is very chilly! 36 celsius for sure.
