Healthy Living Step No. 1: Take stock. Your first step toward healthy living is to get a handle on your health status right now. Here's your to-do list: Make appointments with your doctor and dentist. Catch up on your routine screening and immunizations, and take the opportunity to ask your doctor any questions you might have. Gauge your girth. Measure your height and weight to check your BMI, and measure your waist circumference to see if you're overweight and if your waistline is putting your health at risk.