Teenagers who smoke to cheer themselves up may actually be more prone to depression. Researchers from the University of Montreal Hospital Research Centre studied 662 teenagers asking them about their smoking habits and their mood. The participants were divided into three groups: those who had never smoked, those who smoked but did not do so to 'self-medicate' and those who smoked to improve their mood. Those who used cigarettes as mood-enhancers had higher risks of elevated depressive symptoms than those teenagers who had never smoked.
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