To estimate the total number of years that you will live, (a) determine a net score by totaling the results from all 48 questions, (b) obtain an age change score by multiplying the net score by the age correction factor given below, and (c) add or subtract this number from your base ife expectancy age (73 for men and 80 for women-the current life expectancyes in the United States). For example, if you are a 20-year-old male and the net score from the answers to all questions was -16, your estimated life expectancy would be 68.2 years (age change core =-16 x .3 = -4.8, life expectancy = 76 - 4.8 = 71.2). You also can determine your real physiological age by subtracting a positive age-change score or adding a negative age-change score to our current chronological (calendar) age. For instance, in the previous example, the real physiological age would be 15.2 years (20 - 4.8). If he age change score had been -4.8, the real physiological age would have been 15.2 years. Thus, a healthy lifestyle will always make your hysiological age younger than your chronological age. Your real physiological age will have much greater significance in middle and older age, when real-age reductions of 10 to 25 years occur in people who lead healthy lifestyles. Thus a 50-year-old person could easily have a real hysiological age of 30. Age Correction Factor (ACF)* Age Change Score (ACS) (net score) x (ACF)- Are ACF $30 Life Expectancy 31-40 Men = 76+ (ACS) = years 41-50 51-60 Women = 81 (ACS) = years 61-70 71-80 Real Physiological Age* * 81-90 Men (your age) + (ACS) = years 29 Women (your age) = (ACS) - years apted from M. F. Poison, Resites a York Cliff Street Backs, 1920). *Subtract a positive ACS from, or add a negative ACS In your current age