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.
Instead, it tends to happen in spurts. Among the signs of a growth spurt in progress: 1  Your child may seem hungrier than usual or eat more at a sitting. 2  Your child may nap longer than usual or sleep longer at night. 3  Your child may be crankier or clingier than usual even though she's not ill.