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Description
A study involving over 44,000 participants found that while brain training showed statistically significant effects, the improvement was small only 0.06 standard deviations compared to non-users[12]

Effects of anhedonia on days to relapse among smokers with a history of depression: a brief report

Avoid exposure to cancer-causing substances Avoid exposure to cancer-causing substances, such as aniline dyes and chemicals

Jansakoo, T., Surapipth, V
