Professor Yutaka Matsuoka is Division Chief of Health Care Research, Center for Public Health Sciences, National Cancer Center Japan. He graduated from the Jikei University School of Medicine in 1993 and was initially trained as a general practitioner for two years before specializing in psychiatry. He received his PhD in psychiatry and clinical neuroscience from Hiroshima University in 2003. He investigates the role of diet, gut microbiome and exercise in the amelioration or control common mental health problem and to enhance the healthy life expectancy for all people diagnosed with cancer and other lifestyle-related disease. He has conducted a first clinical trial of omega-3 PUFAs for attenuation of PTSD symptoms among rescue workers after the Great East Japan Earthquake in 2011. His dream is that evidence-based lifestyle modification targeting diet and physical activity will soon be available to alleviate the suffering of cancer survivors with common mental health problems.