It needs this essential substance to continue the rebuilding process. You may find yourself urinating a lot more. This may occur because you will find yourself drinking more water. Water is the largest substrate in our body. As you start to loose body fat, your water consumption will increase substantially and facilitate further loss of body fat.
Sleep is one of the first things affected.
It is REM sleep that is the most restful component of sleep. It appears to take about two weeks for this cycle to normalize where onset of sleep returns to the normal. If you are obese, you will note a decrease in weight over time. However, if you are not obese, you will probably gain a few pounds. This is because your lean body mass will increase and weights more than the body fat that you are loosing.