Stage II is the predominant sleep stage during a normal night's sleep. The distinct and principal EEG criterion to establish stage II sleep is the appearance of sleep spindles or K complexes. The presence of sleep spindles is necessary and sufficient to define stage II sleep.
After 5 hours â your BAC would be 0.005. Alcohol would be eliminated from the body at about 5 hours and 20 minutes (the body metabolizes alcohol at the rate of about 0.005 per twenty minutes, as 0.005 x 3 = 0.015). So it is easy to tell when your body will be free of alcohol.
Professional Results in 5 minutes. Once in the bloodstream, alcohol leaves the system in two ways: 10% leaves through breath, perspiration, and the urine. 90% is metabolized (broken down in the body). Pretty much everyone, regardless of age, size, or race, metabolizes alcohol at the same pace.