Substance use disorder occurs when a person needs alcohol or another substance (drug) to function normally. Abruptly stopping the substance leads to withdrawal symptoms. Addiction means that a person has a strong urge to use the substance and cannot stop, even if they want to.
So it is important to maintain positive nitrogen balance in the body while sleeping. When you do and conditions are right so that your rate of protein synthesis exceeds your rate of degradation, and you maintain a positive nitrogen balance, you can grow while you sleep.
The Effects of Sleep on Muscle Growth. Sleeping will ensure that your body is able to complete the necessary cycles of repair and recovery in order to achieve muscle growth. When you sleep your body creates spikes in larger amounts of human growth hormone, testosterone and melatonin.