We read with interest the article titled “Six-month psychiatric outcomes among survivors of COVID-19” published in Cukurova Medical Journal by Poyraz et al.. This study showed that anxiety, depression and sleep disorders improved over time, but symptoms continued in severe disease. COVID-19 can affect all organs in the body. Therefore, these processes can be prevented with early diagnosis and treatment. Smoking can couse chronic diseases. Additionally, smoking is one of the most important triggers of anxiety and depression. No information about smoking was found in the study. Obesity can couse sleep disorders. Were the patients body mass indexes checked?