Multiple sclerosis (MS) is a chronic inflammatory disease that causes damage to the myelin sheath, resulting in scarring due to the destruction or failure of myelin-producing cells by the immune system. Salivary diagnostics show no significant changes in the saliva of MS patients except for a reduction in IgA production. However, MS is strongly associated with the human herpesviruses Epstein-Barr virus (EBV) and human herpesvirus 6 (HHV-6). While at least 90% of the global adult population is seropositive for both viruses, only a small subset develops EBV or HHV-6-associated diseases, such as infectious mononucleosis, several forms of cancer, roseola infantum, and encephalitis. MS can cause a range of symptoms, including fatigue, muscle weakness, numbness, and difficulty with coordination and balance. The exact cause and mechanism of MS is unknown, but it is believed to involve a combination of genetic and environmental factors. There is no cure for MS, but treatments can help manage symptoms and slow down disease progression. 2.3 Cardiovascular Diseases Among the cardiovascular diseases, acute myocardial infarction (AMI) is one of the most vicious as a life-threatening complication and one of the leading causes of death worldwide. Although medical advancements have been made, AMI remains a major cause of mortality and morbidity.