A 55-year-old male patient comes to the clinic for a routine check-up. He leads a sedentary lifestyle and has a BMI of 30. During the visit, the nurse discusses the importance of physical activity and healthy nutrition. The nurse emphasizes that in order to reduce the risk of chronic diseases such as diabetes and cardiovascular disease, it is essential for the patient to increase his exercise levels by at least ______ minutes of moderate-intensity aerobic activity every week, according to current health guidelines.