Sukjae Choi is a Clinical Professor at Yeouido St. Mary"s Hospital and a board-certified emergency physician. Drawing on 20 years of frontline experience in emergency medicine, he shares practical insights into the warning signs of cardiovascular and cerebrovascular diseases, as well as effective emergency response strategies. He is also a highly regarded speaker who communicates evidence-based approaches to extending healthy lifespan, preventing chronic metabolic diseases and cancer, and adopting sustainable lifestyle habits in a way that is clear, accessible, and engaging for general audiences.

Alongside his clinical practice, Dr. Choi serves as the representative of the nonprofit organization Happy Doctor, volunteers at Joseph Clinic, and is Executive Director of Veggie Doctor, actively contributing to the development of compassionate healthcare communities and expanding access to digital healthcare services. He also serves as a medical advisor to the AI healthcare startup Promedius and as the head of Habit School at Haebit School, while operating a mobile health app and the YouTube channel "Geonbangjin Doctors" ("Cheeky Doctors"), further establishing himself as a multifaceted medical communicator.

One of Dr. Choi"s greatest strengths is his ability to explain the critical warning signs of serious illnesses through real-life emergency room cases in a way that is easy to understand. He also provides practical, actionable strategies that audiences can immediately apply in their daily lives?from improving eating habits and exercise routines to cultivating healthier mindsets. His engaging and practical lectures have been well received by corporations, public institutions, public health centers, and schools.

His television appearances include tvN"s You Quiz on the Block (Hospital Playlist Special), MBC"s Good Day, Distinguished Lecture, SBS"s Big Question, EBS"s Medical Documentary: Seven Days, and KBS"s Life Frontline, through which he has actively communicated with the public on health and medicine.

In addition to medical topics such as cardiovascular and cerebrovascular diseases, emergency response, healthy longevity, and chronic disease prevention, Dr. Choi also delivers lectures on stress management and burnout prevention for professionals, building healthy organizational cultures based on neuroscience and medical evidence, and leadership and teamwork strategies for creating high-performing organizations. His expertise spans a wide range of topics, from individual well-being to organizational performance.