The use of cannabis, drinking and smoking cigarettes is common among adolescents. However, high achieving or academically sound teenagers are more likely to smoke marijuana during their years as teenagers owing to their curious minds. Due to the pressure been faced among their friends to be accepted or to belong, especially in their late teens (18-20 years old). A research conducted by the University of London in England, about 6,059 young pupils at age 11 from schools that are state funded as well as fee-paying, their data was collated and analyzed by experts who deemed that smart teenagers are less likely to smoke but more likely to drink alcohol and also smoke cannabis. The study only shows the correlation and not the cause of this, although experts says that cleverness is oftentimes linked to the trying out on new experiences for instance experience that can lead them to try drinking alcohols or smoking marijuana. In an article published by BMJ i.e. British Medical Journal, it was concluded that the fact that drinking of alcohol and smoking of marijuana amongst high-achieving or brainy pupils carry on to early adulthood. Also, there is a relationship between the pattern of drinking and smoking with parental influence, in as much as affluent parents who have high cognitive ability as well as a notably high socioeconomic status are known to regularly drink alcohol. This habit i.e. smoking of marijuana and drinking of alcohol continues from late teens into early adulthood. The use of cannabis by high-achieving teens that is likely to occur twice as possible in their late teens or early adulthood is partly because they are aware of the illegality of the use of cannabis and also the implications that comes with the possession of it needless to say smoking it.
Although, hazardous drinking and smoking was limited amongst the high-achieving teenagers, it is observed that the use of cannabis by brainy teenagers had 50 percent chance of happening and approximately twice as likely to be persistent in the use. This downward trend is a very risky health behavior which poses a large problem in the public health as the use of marijuana is a risk factor and also negative factors that are not health related such as employment outcomes as well as poor education said Dr. Williams of the University College of London, Medical School. Further researches have warned teenage use of marijuana should be opposed, teenagers who use cannabis on a regular basis are vulnerable to developing serious mental disorders like psychosis, addiction, depression. The use of cannabis causes sensory awareness to be dulled, judgment and reaction and others which is likely to cause teenage involved accidents especially those that drives. Also according to the report from American Academy of Pediatrics, Marijuana affects functions of the lungs and also can interfere with learning by causing attention span and problem-solving skills.