Effects of marijuana on the respiratory system

Another fact is little known that marijuana smoke has 4x more tar and 50% more carcinogens than cigarettes, in addition to being smoked without a filter and be more downed, causing a greater inhalation of irritating particles into the airways and lungs. The consumption of three marijuana cigarettes seems equate to the 20 cigarettes common. The big difference is that most people use marijuana in smaller quantities and normally abandons the habit with age.

People who smoke more than 3 marijuana cigarettes per day tend to have breathing problems similar to smokers, including coughing, phlegm and reduced capacity for exercise. The chronic use of cannabis is related to an increased risk of COPD (emphysema/chronic bronchitis).

Marijuana in pregnancy

Due to false belief of the harmlessness of weeds, this is the most widely used illicit drug during pregnancy.So far there is no evidence that marijuana use increase the risk of bad-formations, spontaneous abortions, miscarriages or premature births. However, in pregnant women who smoke more than 6 marijuana cigarettes per week, the children present, from 2 years of age, less and less ability to fitness verbal memory than other children. These children also have a higher risk of hyperactivity and depression. There are also works that show an increased risk of leukaemia in children whose mothers smoked cigarettes and marijuana during pregnancy.