Answer:
Some internal reasons might be to relieve pain, both physical and emotional as Codeine can induce a high. The high is addictive. Another reason would be for the side effects, such as drowsiness which can feel like a high. An external reason would be weight, as the class of drug Codeine is in is an opioid. Opioids can cause weight loss, and unrealistic standards of beauty may give a teen the want to loose weight.
In society today I find the media is very influencial in how we perceive someone as attractive or not. The media portrays women being thin beautiful, with make up, lovely shiny hair etc. and the dangers with this can be from a girl who doesnt have those certain attributes and in turn, turns to harmful methods or ways in order to achieve it for example Anorexia to become thinner. Many girls today have very low self confidence due to either being put down for their looks by their social groups or for having their own issues with not looking like a "model" or such. An attractive person should go beyond the physical and personality should be taken into account. Everyone has different tastes in the end so it is important to just be yourself and love your own body.
