The athletes in this study also reported the use of clenbuterol for weight loss and the maintenance of lean mass, which can have adverse effects such as pulmonary edema, myocardial infarction, chest pain, palpitations, and anxiety; the coadministration of clenbuterol with drugs such as AASs and thyroid hormones increases the risk of cardiotoxicity [20,48]. This evidence concerns the gene TG and Anxiety.