The Circadian Rhythm of ICU Patients With Acute Myocardial Infraction and the Effect of Light Therapy

Inclusion Criteria: * Diagnosis for admission is acute myocardial infarction with severity between Killip I-III. * Age is between 35-85. * Participants who are willing to participate in the study and sign the informed consent. Exclusion Criteria: * Using sedative hypnotic drugs. * Blindness or severe cataract. * Neurological diseases such as epilepsy, brain injury, or stroke. * Severe mental disorder such as major depressive disorder, bipolar disorder, schizophrenia, intellectual disability or substance use disorders. * Unable to communicate. * Participants who are unwilling to participate in the study or refuse to sign the informed consent. * Participants who are not suitable to include in this study, evaluate by PI or Co-PI.