The practical nurse (PN) is caring for a male client whose height is 5 feet 11 inches (180.34 cm), with a body mass index (BMI) of 31.7 kg/m2. The client is employed as an air traffic controller and informs that he is currently dating and enjoys getting together with friends each weekend. Which health promotion action is most important for the PN to discuss with the client? Reference range: Body Mass Index (BMI) [normal 18.0 to 24.9 kg/m2]