Dr. Mahadir Ahmad is a senior lecturer & clinical psychologist at Clinical Psychology & Behavioural Health Programme, Faculty of Health Sciences, The National University of Malaysia (UKM). He has bachelor degree in Industrial & Organisational Psychology from UMS and master’s degree in Clinical Psychology from UKM. He obtained his Post-graduate Diploma in Psychological Research Methods and Ph.D in Health & Clinical Psychology from the College of Life Sciences and Medicine, University of Aberdeen. His research interests include psychological intervention for medical procedures, psychological prehabilitation for cancer, circadian rhythm disruption affects mental health, cognitive remediation for schizophrenia and parental stress of parents with special children. He provides psychological services at Health Psychology Clinic, UKM. He actively involves in giving private consultation for psychological trauma in torture victims, Employee Assistance Programme and psychological first aid. He was appointed as an international classifier for athlete with intellectual impairments in several Paralympic Games besides conducting community mental health screening at national level. He is a member of American Psychological Association, European Health Psychology Society and Malaysian Society of Clinical Psychology.