Black Out

 



  1. Blackout Book
  2. Black Out Blinds
  3. Mini Blackouts In The Brain

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black out

1. verb To lose consciousness. My blood sugar dropped so low during the meeting that I blacked out and woke up on the floor.
2. verb To experience a period of time about which one does not remember anything, despite having been fully conscious at the time (as during a stressful or traumatic event.) It's like I blacked out during the interview—I don't remember anything I said!
3. verb To avoid thinking about or remembering something, often because it is stressful or traumatic. Many trauma victims try to black out the horrific things that have happened to them.
Black Out
4. verb To prevent something from being broadcast or disseminated, usually in a specific geographic area. Ugh, the game must be blacked out tonight. Is it on any other channel?The dictator has blacked out news from the rest of the world.
5. verb To cover something (usually with black lines or blocks) so that it cannot be seen or read. Be sure to black out all the other names on this list before you put it in the employee's file.The newspaper blacked out part of the photograph.
6. noun An episode of unconsciousness. Often written as one word ('blackout'). My blood sugar dropped so low that I had a blackout during the meeting and woke up on the floor.
7. noun A period of literal darkness caused by the loss of electricity, as during a storm. Often written as one word ('blackout'). We read by candlelight to pass the time during the blackout.
8. adjective, slang Extremely drunk, often to the eventual point of unconsciousness. Often written as one word ('blackout'). He was blackout last night, so I'm not surprised that he doesn't remember talking to you.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

black something out

1.Lit. to cut or turn out the lights or electric power. The lightning strike blacked the entire town out.The manager blacked out the whole building during the emergency to prevent an explosion.
2.Fig. to prevent the broadcast of a specific television or radio program in a specific area. Will they black the game out around here?They blacked out the basketball game in this area.

black out

1.Lit. [for lights] to go out. Suddenly the lights blacked out.The power went dead and everything blacked out from the heat.
2.Fig. to pass out; to become unconscious. After I fell, I must have blacked out.I think I am going to black out.

Blackout Book

McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

black out

1. Obliterate with black, as in crossing out words on a page or print on a screen. For example, They have blacked out all the obscene words in the subtitles to make this movie suitable for youngsters . This usage may be derived from an earlier meaning, 'to stain or defame,' which dates from the 15th century (and probably alludes to 'blackening' a person's reputation). [Mid-1800s]
2. Extinguish all lights. For example, The whole town was asleep, as blacked out as London during the war. In the early 1900s this expression alluded to the lights in a theater, but from about 1940 on it meant darkening an entire city to hide it from enemy bombers.
3. Lose consciousness, faint; also, experience a temporary loss of memory. For example, I couldn't remember a single note of the music; I blacked out completely, or The accused man claims he blacked out after his first drink. This usage is thought to have originated with pilots, who sometimes fainted briefly when pulling out of a power dive. It soon was transferred to other losses of consciousness or memory. [c. 1940]
Outfits
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

black out

v.
1. To stop emitting light; go out: The traffic lights blacked out when the storm knocked down power lines.
2. To cause a failure of electrical power in some region: The strong winds blacked out much of the city.
3. To lose consciousness or memory temporarily: The patient felt very dizzy and blacked out for a few minutes.
4. To suppress some memory from the conscious mind: The refugees blacked out their wartime experiences.
5. To prohibit the broadcast or spread of something, especially by censorship: The government blacked out the news that was broadcast from enemy radio stations.
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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Black Out Blinds


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What Are Blackouts?

Alcohol-related blackouts are gaps in a person’s memory for events that occurred while they were intoxicated. These gaps happen when a person drinks enough alcohol to temporarily block the transfer of memories from short-term to long-term storage—known as memory consolidation—in a brain area called the hippocampus.

Types of Blackouts

There are two types of blackouts; they are defined by the severity of the memory impairment. The most common type is called a “fragmentary blackout” and is characterized by spotty memories for events, with “islands” of memories separated by missing periods of time in between. This type is sometimes referred to as a grayout or a brownout.

Complete amnesia, often spanning hours, is known as an “en bloc” blackout. With this severe form of blackout, memories of events do not form and typically cannot be recovered. It is as if the events simply never occurred.

When Do Blackouts Occur?

Blackouts tend to begin at blood alcohol concentrations (BACs) of about 0.16 percent (nearly twice the legal driving limit) and higher. At these BACs, most cognitive abilities (e.g., impulse control, attention, judgment, and decision-making) are significantly impaired. The level of impairment that occurs at such high BACs makes the intoxication level associated with blackouts especially dangerous.

Blackouts can occur at much lower BACs in people who drink and take sleep and anti-anxiety medications.

Research indicates that blackouts are more likely to occur when alcohol enters the bloodstream quickly, causing the BAC to rise rapidly. This could happen if someone drinks on an empty stomach or consumes large amounts of alcohol in a short amount of time. Because females, on average, weigh less than males and, pound for pound, have less water in their bodies, they tend to reach higher peak BAC levels than males with each drink and do so more quickly. This helps explain why being female appears to be a risk factor for having blackouts.

Because blackouts tend to occur at high BACs, they commonly stem from binge drinking, defined as a pattern of drinking that increases a person’s BAC to 0.08 percent or higher. This typically occurs after 4 drinks for women and 5 drinks for men—in about 2 hours. In fact, many people who have blackouts do so after engaging in a behavior known as high-intensity drinking, which is defined as drinking at levels that are at least twice as high as the binge-drinking thresholds for women and men.

Blackouts vs. Passing Out

Mini Blackouts In The Brain

A blackout is not the same as “passing out,” which means either falling asleep or losing consciousness from drinking too much.

During a blackout, a person is still awake but their brain is not creating new memories. Depending on how much the person drank, it is possible to transition from having a blackout to passing out.

Are Blackouts a Sign of an Alcohol-Related Problem?

Research among college students and other young adults has shown that the frequency of blackouts predicts other alcohol-related consequences (such as missing work or school, having a lower grade point average [GPA], being injured, ending up in the emergency room, getting arrested, or experiencing other negative outcomes). Questions about blackouts during routine medical visits could serve as an important simple screen for the risk of alcohol-related harms.

Blackouts are not necessarily a sign of alcohol use disorder, but experiencing even one is a reason for concern and should prompt people to consider their relationship with alcohol and talk to their healthcare provider about their drinking.

For more information about alcohol and your health, please visit: https://RethinkingDrinking.niaaa.nih.gov