As bizarre as it may sound, a group of researchers in U.S. have found that genes can affect the severity of drug addiction in men. The genetic makeup of a person and his history of substance abuse can make a big difference in the treatment.
Scientists at the Brookhaven National Laboratory discovered that certain people who are severely addicted to drugs have lower gray matter density than others, in areas of the brain which are associated with self-control, decision-making and learning.
Lower gray matter translates to fewer numbers of neurons in these critical areas.
Nelly Alia-Klein, a medical scientist and study co-author told reporters that drug addicts with low MAOA genotype may require a different treatment than others who bear a high MAOA. MAOA stands for monoamine oxidase A.