Don't Know What To Do?
- Article Summary
- Alcohol and other depressant drugs
- Cannabis and other hallucinogens
- What is blood alcohol content?
- Is there some way I can quickly "sober up" if I've been drinking and need to drive home?
- Who are the people who drink and drive?
Alcohol and Other Drugs While Driving
How do alcohol and other drugs affect driving?
When you drive, your hands, eyes and feet control the vehicle, and your brain controls your hands, eyes and feet. To drive safely, you need to be alert, aware and able to make quick decisions in response to a rapidly changing environment.
Alcohol and other drugs alter the normal function of the brain and body, and interfere with even the most skilled and experienced driver's ability to drive safely. While different drugs can have different effects on driving, any drug that slows you down, speeds you up or changes the way you see things can affect your driving — too often with tragic consequences.
Alcohol and other depressant drugs
Alcohol blunts alertness and reduces motor coordination.?People who drive after using alcohol can't react as quickly when they need to. Their vision is affected, and may be blurred or doubled. Alcohol alters depth perception, making it hard to tell whether other vehicles, pedestrians or objects are close or far away. And because alcohol affects judgment, people who drive after drinking may feel overconfident and not recognize that their driving skills are reduced. Their driving is more likely to be careless or reckless — weaving,?speeding, driving off the road and, too often, crashing.
Alcohol is a depressant drug, which means it slows down your brain and body. Other depressant drugs, including some prescription drugs such as sedatives and painkillers, affect a person's ability to drive safely, in a way similar to alcohol. Any drug that causes drowsiness, including some cough, cold or allergy medications, can also affect a person's ability to drive safely. When alcohol and another depressant drug are combined, the effect is more intense and dangerous than the effect of either drug on its own. When taking prescription or over-the-counter medications, it is wise to consult with your doctor or pharmacist before driving.
Stimulant drugs, such as caffeine, amphetamines and cocaine, may increase alertness, but this does not mean they improve driving skills. The tired driver who drinks coffee to stay awake on the road should be aware that the stimulant effect can wear off suddenly, and that the only remedy for fatigue is to pull off the road, and sleep. Amphetamines do not seem to affect driving skills when taken at medical doses, but they do make some people over-confident, which can lead to risky driving. Higher doses of amphetamines often make people hostile and aggressive.
People who use cocaine are also likely to feel confident about their driving ability. But cocaine use affects vision, causing blurring, glare and hallucinations. "Snow lights" — weak flashes or movements of light in the peripheral field of vision — tend to make drivers swerve toward or away from the lights. People who use cocaine may also hear sounds that aren't there, such as bells ringing, or smell scents that aren't there, such as smoke or gas, which distract them from their driving.
Cannabis and other hallucinogens
Cannabis impairs depth perception, attention span and concentration, slows reaction time, and decreases muscle strength and hand steadiness — all of which can affect a person's ability to drive safely.
The effects of hallucinogenic drugs, such as LSD, ecstasy, mescaline and psilocybin, distort perception and mood. Driving while under the influence of any of these drugs is extremely dangerous.
What is blood alcohol content?
When you drink alcohol, it goes directly from your stomach into your bloodstream. Blood alcohol content (BAC), or percentage of alcohol in your blood, can be measured by police with a breathalyzer or blood test. Under provincial laws in the Ontario Highway Traffic Act, a .05 BAC can result in a 12-hour licence suspension. The Criminal Code of Canada sets the "legal limit" for drinking and driving at .08 BAC. Ontario drivers with a level one or two graduated licence must maintain a zero BAC.
Because people react differently to the effects of alcohol, it is very difficult for a person to judge his or her own BAC. A person may not feel "drunk," but may still be legally impaired.
Is there some way I can quickly "sober up" if I've been drinking and need to drive home?
No. Once a person consumes alcohol, it enters the bloodstream, and only time can reduce the concentration of alcohol in the blood. It takes about a hour for the average human body to process and eliminate two-thirds of the alcohol in one standard drink. This rate is constant, meaning that the more you drink, the longer time you need to wait before driving. Drinking coffee or other caffeinated beverages might make you more alert, but your ability to drive will still be impaired.
Who are the people who drink and drive?
Studies have found that people who have been convicted of impaired driving offenses come from many different backgrounds, age and income groups. Such studies have also identified certain characteristics of people who drink and drive. Looking at convicted drinking drivers, we see that
most are male
a high proportion are "heavy" drinkers
many have an "antisocial attitude," meaning they lack respect for the law and the safety of others, and
of those who are convicted of drinking and driving, almost all report having driven while under the influence many times before.
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