It causes increased aggression.

It causes increased aggression.

Most people’s personality quirks are exaggerated after a couple of cosmos—and aggression is no exception. While not everyone is a victim of aggression under the influence, research in NIH suggests that people with antisocial personality disorder (ASPD) may be more prone to alcohol-related aggression than people without the disorder. Researchers blame it on the booze altering multiple brain chemicals including neurotransmitters g-aminobutyric acid (GABA) and serotonin, which are both associated with aggressive behavior.

7 You become easily distracted.
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No surprise here: alcohol increases your vulnerability to distraction. So the next time your pal decides to lay a heavy story over some beers, just blame your lack of focus on science. A study in Biological Psychiatry found that alcoholics suffered from lower P3a, an index of attention—and that alcohol impaired the ability to focus on one thing while simultaneously ignoring extraneous information from distracting them from focus. Another study in Psychopharmacology found that P3a was suppressed by alcohol even with the lowest 0.3-gram-per-kilogram alcohol dose. These findings show that even a small amount of alcohol can cause involuntary attention shifting.

8 It leads to a lack of problem-solving skills.
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Researchers explored how the brain’s frontal lobe functions in people with chronic alcoholism via the Wisconsin Card Sorting Test and their notable findings were published in Psychiatry Research. The study’s conclusion reveals that alcoholics had the highest Inefficient Sorting scores—meaning that alcoholics often fail in finding a theme when solving a problem.

9 It can lead to alcohol dependence.
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Children who begin drinking by age 13 have a 38 percent higher risk of developing alcohol dependence later in life, the American Psychological Association reports. How so? Teen brains are different: they’re more action- and emotion-oriented because the planning and inhibition centers take longer to develop, Sandra A. Brown, PhD, a psychology and psychiatry professor at the University of California, San Diego, explains.

A study in Alcoholism: Clinical & Experimental Research found that about 33 percent of people who reported to have started imbibing at age 17 or younger also reported experiencing alcohol dependence (AD) at some point in their lives. “Individuals who begin drinking at 17 or younger are more than three times more likely to develop AD than those who begin at age 21 or older,” Richard A. Grucza, an epidemiologist at Washington University School of Medicine and the study’s corresponding author, explains. “One compelling perspective is that people who are at high genetic risk for AD begin drinking earlier for the same reasons that they develop AD. For example, they may be more impulsive, prone to greater risk-taking, have a harder time controlling their behavior, and so on. Since delaying AOD (age at onset of drinking) by itself wouldn’t change these other factors, it wouldn’t necessarily lead to reduced AD,” Grucza says.

10 You’ll have slower movements.
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According to a study in the British Journal of Anesthesia, ingesting alcohol leads to the slowing down of thought and physical movements, also known as psychomotor impairment. The findings revealed that general alertness and motor speed (known as choice reaction time) and dual-task secondary reaction time (such as in multitasking) both deteriorated with increasing BAC.

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