This chart shows how a drinker's behavior may change as BAC levels increase. Remember, these are general guidelines, but will vary from person to person.
| BAC Level % |
Change in Drinker's Behavior |
| 0.01 - 0.02 |
The drinker feels relaxed, with a minor impairment of judgment and memory. Ussually no apparent changes in behavior are noted. |
| 0.03 - 0.04 |
There is some loss of judgment and efficiency. Alertness is decreased. Small behavioral changes begin to be noticed. |
| 0.05 - 0.06 |
Inhibitions are lowered. Decision-making skills are affected. the drinker begins to have less control over actions and emotions. |
| 0.07 - 0.08 |
Walking, talking and balance are visibly affected. The drinker's ability to react is notably slower.
A BAC of 0.08% is considered legally intoxicated in some states. |
| 0.09 - 0.10 |
Vision, judgment, speech and reaction times are all severely afected. loss of balance is common.
A BAC of 0.10% is considered legally intoxicated in some states. |
| 0.11 - 0.15 |
Judgment, memory, and self contriol are further affected. Irresponsible behavior and exaggerated mood swings are evident. There is a decrease in the drinker's ability to sense pain. |
| 0.16 - 0.19 |
The drinker's behavior and speech are greatly affected. There is a lack of motor control, mental confusion, and severe mood swings. The drinker is unable to perform ordinary tasks. |
| 0.20 - 0.30 |
The drinker is in a confused state. Unconsciousness may occur. All physical and mental abilities are severely impaired. The central nervous system is acutely depressed. |
| Above 0.30 |
The drinker is unconscious, with an irregular heart beat and breathing pattern. Coma or death are possible as a result of acute alcohol poisoning. |
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