The effects of alcohol are more severe on children and teenager than adults. Alcohol has the ability to impair brain development, hampering their problem-solving skills, memory, decision-making skills, reasoning ability, mental health, mood, and performance at school. An average adult would have to drink twice as much alcohol as an adolescent to cause the same level of damage as anyone under 21.
Low level of intake is not without side effects or temporary impairments or dulling of the brain’s activity. However, it is unlikely to cause serious or long-term effects.
Since alcohol does affect your brain even in small amounts, it is best to not drink any at all if you are underage, pregnant, plan to drive, have a medical condition that’s worsened by drinking or take medications that could interact with the alcohol.
Also, an alcohol concentration of each type of drink is different. Women experience adverse alcohol linked health effects at lower alcohol intake levels than men. Women tend to weigh less than men so the same level of alcohol has less place to go to. Also, women have lower water content than men. So your blood alcohol concentration will usually rise faster if you’re a woman for the same quantity of alcohol drunk as a man.
Long-term abuse or heavy drinking could even impair cognitive ability and cause brain damage, scar tissue, and Wernicke Korsakoff syndrome. Alcohol inhibits brain and central nervous system functions that are responsible for things like speech. As the alcohol enters your bloodstream, it begins to affect your brain and thought process, which in turns causes those more visible behavioral and body changes.
Alcohol can also affect your decision making. Alcohol can interfere with your brain’s ability to create new long-term memories. The more you drink, the worse the memory impairment gets.