Definition of drug abuse and drug addiction :
Addiction is defined as a chronic, relapsing brain disease that is characterized by compulsive drug seeking and use.
It is considered a brain disease.
Drug abuse is a serious public health problem.
Each year drug abuse causes millions of serious illnesses or injuries.
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Under 18 is considered underweight and over 25 is considered overweight, so for both men and women 18-25 is considered a healthy BMI.