Race is a complex topic to address, because its very existence is contentious. Race can dramatically shape the fortunes of people in modern societies despite the lack of a solid biological basis for what appears to be a biological concept. We can define race as a biologically distinct sub-group or sub-species within the human species.
14 Reasons Why Marijuana Is Good For The Economy. The government would save an estimated $13.7 billion on prohibition enforcement costs and tax revenue by legalizing marijuana, according to a paper endorsed by 300 economists.
Marijuana has a long-term effect on blood flow to the brain, potentially increasing the risk of memory damage and stroke, research finds. The National Institute on Drug Abuse in Baltimore found users have faster blood flow in their brains - even after a month of not smoking.