The relationship between DNA, Sociopathy and Monomine Oxidase.

Put in plain, easy to understand language.

Monomine oxidase is a chemical that most of us produce in our brains that is associated with firing our "flight response" - aggressiveness or the warning bells in something we may see as an emergency life threatening situation which in turn gets the adrenaline going. It can also be associated with feelings such as the excitement of love.

Genetic studies in Holland have shown that the gene responsible for the production of Monomine oxidase was missing in people who were diagnosed as sociopathic (having no regard or concept of how others may be effected by their actions). original publication from "Science" journal. reference here...

Studies done by The Spanish Council for Scientific Studies, reveals that beta-carboline alkaloids in tobacco smoke reduce the production of monomine oxidase, hence a "self medicated" effect seen in smokers - reduced aggressive behaviour.

You may conclude that because of reduced levels of monomine oxidase, smokers become sociopaths but this is not so as smoking merely regulates the amount being produced to an acceptable level where the smoker is able to reduce aggression or anxiety.
With the worldwide anti-smoking drive netting many unsuspecting people who could well do with medication are perhaps contributing to worldwide increases in aggression.

Spanish Council for Scientific Studies source...
do read it as it will do your brain good to fact find for yourself and your information will no longer be third hand you will be sure about it if you have the occasion to speak up.
This may help you explain why some people you know "go off" with the slightest provocation, like the short fuse that road ragers develop because of increased production of monomine oxidase whilst stressing in traffic.

A Link between Monomine Oxidase and alcohol and drug abuse, is also apparent indicating a need to self medicate in one way or another.

Of course the anti-smoking lobby have another great reason to continue their hate propaganda and that is the amount of money that is given to them to promote anti-smoking - read the document below.
A better informed government would regulate cigarette manufacturers who add the carcinogenic chemicals to the tobacco they would not only save millions protecting the smokers and second hand smokers but would also cut out the fringe parasitic anti-smoking groups who make a substantial amount on demonizing smoking and smokers. Read Mike Adams of Natural health.com honest and intelligent appraisal of tobacco and the industry

MOH OIA - Tobacco Spend for Period 200809 200910 201011