Cold may cause cardiac discomfort. Cold belongs to upper respiratory tract infection, often caused by viruses and other factors, and the lack of rest and excessive exercise after cold can induce viral myocarditis. In patients with viral myocarditis, there may be no obvious discomfort in mild cases, but in severe cases, symptoms such as chest pain, palpitations and cardiac insufficiency may appear, which may lead to sudden death in severe cases, so it is possible for a cold to cause cardiac discomfort. In addition, for patients with organic heart disease, colds often tend to induce pulmonary infections, etc., and cause an acute attack of heart failure. In the acute attack of left heart failure, the manifestation of pulmonary stasis such as coughing, coughing and hemoptysis may appear, and in right heart failure, the manifestation of body circulation stasis such as lower limb edema may appear.