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Alcohol and Other Drugs

BAC: Blood Alcohol Concentration

Blood alcohol concentration measures the percentage of alcohol in your blood, so a BAC of .1% is equivalent to one part alcohol for every 1,000 parts blood. The span of physical and mental impairments widens in correlation with the increase of blood alcohol concentration in your body. It does not take much alcohol for your brain to register a "buzzed" feeling. This happens within a BAC range of 0.02 percent to 0.06 percent. The legal intoxication limit for operating a motor vehicle in Minnesota is 0.08 percent. If you are under 21, it is not a drop of alcohol.

Tolerance

Tolerance is different from BAC in that tolerance is the physical and mental acclimation to alcohol, developed after habitual use. Tolerance does not give you immunity to poor judgment, improve your motor skills, or quicken your reaction time. Acclimating to being drunk gives a false sense of safety since your body still processes alcohol and BAC can still rise, leading to many of the same negative effects of over drinking such as alcohol overdose.

Blood Alcohol Concentration Changes in Feelings
and Personality
Physical and Mental Impairments
0.01 - 0.06 Relaxation
Sense of Well-being
Loss of Inhibition
Lowered Alertness
Joyous
Thought
Judgment
Coordination
Concentration
Reaction Time
Emergency Response
0.06 - 0.10 Blunted Feelings
Loss of Inhibition Extroversion
Impaired Sexual Pleasure
Reflexes Impaired
Reasoning
Depth Perception
Distance Acuity
Peripheral Vision
Glare Recovery
0.11 - 0.20 Over Expression
Emotional Swings
Angry or Sad
Boisterous
Reaction Time
Gross Motor Control
Staggering
Slurred Speech
0.21 - 0.29 Stupor
Lose Understanding
Impaired Sensations
Severe Motor Impairment
Loss of Consciousness
Memory impairment
0.30 - 0.39 Severe Depression
Unconsciousness
Death Possible
Bladder Function
Breathing
Heart Rate
> 0.39 Unconsciousness
Death
Breathing
Heart Rate


Blood alcohol concentrations vary between men and women for a variety of reasons, ranging from body size and weight to hormones and enzymatic makeup. For a more detailed explanation of factors affecting alcohol absorption, check out Absorption Rate Factors. Below are some estimates as to BAC levels according to sex, weight, and number of standard drinks consumed. How many drinks have you had lately and where does your BAC fall?

If you are a woman, your Blood Alcohol Level is:
  Weight
# Drinks
in 1 Hour
100 lbs 120 lbs 140 lbs 160 lbs 180 lbs 200 lbs 220 lbs 240 lbs
1 .05 .04 .04 .03 .03 .03 .02 .02
2 .10 .08 .07 .06 .06 .05 .05 .04
3 .15 .13 .11 .10 .08 .08 .07 .06
4 .20 .17 .15 .13 .11 .10 .09 .09
5 .25 .21 .18 .16 .14 .13 .12 .11
6 .30 .26 .22 .19 .17 .15 .14 .13
7 .36 .30 .26 .22 .20 .18 .16 .15
8 .41 .33 .29 .26 .23 .20 .19 .17
9 .46 .38 .33 .29 .26 .23 .21 .19
10 .51 .42 .36 .32 .28 .25 .23 .21
11 .56 .46 .40 .35 .31 .27 .25 .23
12 .61 .50 .43 .37 .33 .30 .28 .25
13 .66 .55 .47 .40 .36 .32 .30 .27
14 .71 .59 .51 .43 .39 .35 .32 .29
15 .76 .63 .55 .46 .42 .37 .35 .32

 

If you are a man, your Blood Alcohol Level is:
  Weight
# Drinks
in 1 Hour
100 lbs 120 lbs 140 lbs 160 lbs 180 lbs 200 lbs 220 lbs 240 lbs
1 .04 .04 .03 .03 .02 .02 .02 .02
2 .09 .07 .06 .05 .05 .04 .04 .04
3 .13 .11 .09 .08 .07 .07 .06 .05
4 .17 .15 .13 .11 .10 .09 .08 .07
5 .22 .18 .16 .14 .12 .11 .10 .09
6 .26 .22 .19 .16 .15 .13 .12 .11
7 .30 .25 .22 .19 .17 .15 .14 .13
8 .35 .29 .25 .22 .19 .17 .16 .14
9 .37 .32 .26 .24 .20 .19 .17 .15
10 .39 .35 .28 .25 .22 .20 .18 .16
11 .48 .40 .34 .30 .26 .24 .22 .20
12 .53 .43 .37 .32 .29 .26 .24 .21
13 .57 .47 .40 .35 .31 .29 .26 .23
14 .62 .50 .43 .37 .34 .31 .28 .25
15 .66 .54 .47 .40 .6 .34 .30 .27


As taken from Facts on Tap

 

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Minneapolis, MN, 55455

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