“Some of the main negative effects of marijuana are due to its illicit nature. Because marijuana is illegal, not only can people have legal action brought against them for growing, selling or buying marijuana, but users never know exactly what active compounds are in the marijuana they’re using.
Major harmful effects of weed are seen when tolerance develops and marijuana is abused. Once a user becomes tolerant to the effects of a drug, they tend to increase their dosage, increasing the likelihood of marijuana addiction and the other negative effects of weed. The state of tolerance also indicates the user will experience the negative effects of weed withdrawal during periods of drug abstinence.”
HealthyPlace.com/Natasha Tracy