The book "The Situation of Healthy Lifestyle in Riyadh" by Abdullah Ali Al-Harthi provides a comprehensive analysis of changes in health behavior, nutrition, and lifestyle in Saudi Arabia over the past three decades. It highlights the impacts of technological developments, the increase in sedentary activities, and Western eating culture on the health of the population. The study reveals that the rates of obesity and non-communicable diseases (NCDs) in Saudi Arabia are alarmingly high, posing significant challenges for the healthcare system in Riyadh. Given the projected rise in heart diseases, hypertension, strokes, and other serious health issues, it examines whether the healthcare system is capable of managing this potential crisis. The book is aimed at professionals, students, and anyone interested in health development in the region.