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.
1 / Sleep. Generally, our growth hormone release is highest during the first part of the night, which is why getting to bed at a decent time for a good nights rest is so important. When we cut our sleep short, we blunt the effect of growth hormone, thus also limiting our recovery and muscle growth ability.