Dr. Mojtaba Mafi M.D., Medical Doctor/ Physician, graduated from Tehran university, School of Medicine with honor. He studied in neurosurgery ward and graduated with A score with thesis on Meningioma Brain Tumor during 6 years. With continuing his practice with special consideration on psychosomatic disorders, He completed many post graduate courses on health psychology, addiction medicine, sexual disorders therapy successfully. He passed many post graduate courses in Neuro, approved by Medical sciences university. As well, He have been passed post graduate courses on Nutrition, Gastroenterology and hepatology, Obesity treatment and diabetes approved by Tehran University of Medical sciences. He successfully passed more than 10 programs with certificates and membership in Iranian Association of Gastroenterology and Hepatology. Having honor of working as associate of Iran Hepatitis Network and Gastroenterology and Hepatology research center, Middle East Liver Diseases Center (MELD). This strong study background enabled me to successfully earn certificates on 3 programs: Updates of skin and treatment from Tehran university 2015 and course on skin care updates from Iranian society of practitioners on 2016, and during 2 years, He had passed Beauty and Skin care courses in South Korea and certified from Sunghuwan co Ltd for using and working of beauty technology, RF and IPL. I am director of fatty liver and related metabolic disorders study among Iranian families since 2015 and currently publishing the results of our study and research about fatty liver and hyperlipidemia, diabetes and nutrition as study director and clinician associate member of Iran Hepatitis Network. I am reviewer and associate editor of Hepatitis Monthly Journal and reviewer of journal of Clinical and Translational Hepatology.