Re-order paragraphs

b) A compulsion is different from an addiction.

d) The former is an overwhelming desire (or sense of physical need) to do something, while an addiction is a physical or chemical dependence on a substance or behavior.

a) People with advanced addictions will continue their addictive behavior, even when they understand that doing so is harmful to themselves and others.

c) For instance, alcoholism, drug abuse, smoking, and gambling are perhaps the most common examples of addictions.