Description: This 1978 SOA session presented some provisional findings of the new Build and Blood Pressure Study. Some of the findings: 1. The average weights of men in the new study exceed the corresponding weights in the previous 1959 study by 2 to 8 pounds in the thirties, and by up to 5 pounds in the fifties. 2. The mortality ratios of overweight men are not significantly different in the new study from those in the 1959 study. 3. Markedly overweight men experienced lower mortality in the current study than in the 1959 study. 4. Men weighing 20 percent below average recorded 10 to 15 percent higher mortality in the new study than in the 1959 study. 5. Mortality of overweight women is relatively lower than that of overweight men. 6. Mortality of men with elevated systolic and diastolic pressures was appreciably lower than in the 1959 study. 7. Mortality of women with moderately elevated systolic and diastolic pressures was not significantly different from that in the 1959 study. 8. The presence of minor impairments alongside of blood pressures in excess of 150/90 usually produced significant increases in mortality.