The chemical name for alcohol is ethanol or ethyl alcohol. The length of time since you drink the last cup until it reaches peak concentrations in the blood varies from 30 to 90 minutes.
The alcohol level of the nervous system acts as a depressant of inhibitory control mechanisms, therefore, the stimulation that is observed when drinking alcohol is due to disinhibition of these mechanisms.
The effects of alcohol depend on the dose and frequency of consumption. Alcohol is absorbed through the digestive system and be metabolized in the liver when alcohol intake is higher than the liver can metabolize invades the bloodstream and spread through all body tissues. (The human body can metabolize only 10 to 15 ml of alcohol per hour. Concentrations higher are considered lethal.)
The centers that are affected are the primary form of speech, thought, cognition and trial. As the alcohol concentration increases, the centers also depress respiration and spinal reflex, up to alcohol poisoning which can cause a coma.
Low doses produce a sense of elevating the mood and relax the person, it also increases heart rate, dilates blood vessels, irritate the gastrointestinal system, stimulates the secretion of gastric juices and urine production (by inhibiting function of the hormone vasopressin or ADH in the kidneys).
The average doses alter speech, balance, vision and hearing. You have a sensation of euphoria and lose fine motor coordination, so you lose the ability to drive and move vehicles.
At high doses, are affected more symptoms produced at lower doses and also alter the mental faculties of the trial. Being able to produce a loss of motor control need help to move and there is a clear mental confusion.
If alcohol is quite high you can present a severe poisoning, which can lead to a state from unconsciousness to coma or even death from respiratory depression
