text: The<unk>  on the human body can take several forms.
  Alcohol, specifically ethanol, is a potent central nervous system depressant, with a range of side effects. The amount and circumstances of consumption play a large part in determining the extent of intoxication; for example, consuming alcohol after a heavy meal is less likely to produce visible signs of intoxication than consumption on an empty stomach. Hydration also plays a role, especially in determining the extent of hangovers. The concentration of alcohol in blood is usually measured in<unk> s of the blood alcohol content.
  Alcohol has a biphasic effect on the body, which is to say that its effects change over time. Initially, alcohol generally produces feelings of relaxation and cheerfulness, but further consumption can lead to blurred vision and coordination problems. Cell membranes are highly permeable to alcohol, so once alcohol is in the bloodstream it can diffuse into nearly every biological tissue of the body.  After excessive drinking, unconsciousness can occur and extreme levels of consumption can lead to alcohol poisoning and death (a concentration in the blood stream of 0.55% will kill half of those affected). Death can also occur through asphyxiation by vomit.  An appropriate first aid response to an unconscious, drunken person is to place them in the recovery position.
option_0: Short-term effects of alcohol
option_1: Long-term effects of alcohol
option_2: Alcohol withdrawal pathophysiology
option_3: Alcohol withdrawal secondary prevention
option_4: Alcohol withdrawal
option_5: Tricyclic antidepressant overdose pathophysiology
option_6: Alcoholism pathophysiology
option_7: Alcohol withdrawal laboratory findings