Alcohol causes unsafe driving because it affects the driver in the following ways. Divides attention Dulls the senses. Lowers the ability to estimate the speed and distance of moving objects. Slows reaction time. For example, combining alcohol and barbiturates can cause a driver to become unconscious, go Into a coma, even die while behind the wheel.
Abuse of alcohol can cause many psychological and emotional problems such as the following.
Abnormal, aggressive or reckless behavior. Difficulty in thinking and concentrating. Extreme Mood swings. Impaired ability to work. Withdrawal from family and friends.