Insomnia can cause adverse effects on heart rate. Patients with insomnia will experience disruption of the endocrine system in the body, which will be in the activation of the renin-angiotensin-aldosterone system. As a result, there will be increased blood pressure, increased heart rate, increased myocardial contraction, and increased myocardial oxygen consumption, which will lead to insufficient blood and oxygen supply to the heart muscle and further increase the heart rate in the long run. Long-term insomnia can also lead to phytoconstitutional dysfunction, and the patient will experience dysregulation of the nervous, humoral and endocrine systems, which will further increase the secretion of vasopressin and lead to an accelerated heart rate. In addition, long-term insomnia will also cause sympathetic nerve overexcitation in the body, which will directly lead to increased heart rate and increased myocardial contraction, so recent insomnia will directly lead to an accelerated heart rate.