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Other factors in addict ion According to the National Institute on Drug Abuse (NIDA), these are some of the environmental factors that come into play with ad- diction: • Friends and people addicts spend time with • Age when a person begins using drugs or alcohol • Neighborhood

“A better understanding

of the brain region and

cell typespecific binding

targets of Hnrnph 1 will

tell us more about the

function of this gene.” — Dr. Camron Bryant, study co-author

• Availability of drugs and alcohol • Presence of mental health issues • Gender

These environmental influences interact with genetic factors to influ- ence an individual’s susceptibility to addiction. While scientists hope to better understand the role genetics plays in addiction to meth and other drugs, much more research needs to be done to solve the puzzle.

Genetics alone are not responsible for addiction. Environmental and social factors also play an important role.