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.
As the baby grows, the container size will need to increase. Young babies and babies just out of the brooder should be in a container with solid sides he cannot see out of that provide a darkened area to promote sleep. Most babies under four months old need about 16 hours of sleep each day. In addition, the brain is stimulated more when the baby hears without seeing.