| The wearable device allows people to monitor smoke and project the damage passive smoking can do to their heart, lungs and life expectancy. |
| Differences in life expectancy between socioeconomic groups have widened, mainly as a result of faster rates of improvement in affluent groups. |
| Salt water and wet bilges will expedite the deterioration, although 10-15 years is a reasonable life expectancy. |
| It is a mistake to suppose that the actuarial figure for life expectancy will be the actual length of life for any particular individual. |
| Life expectancy is adjusted to allow for the fact that people live part of their lives in less than full health. |
| Until recently, biometrics was the science of statistically evaluating various aspects of life expectancy. |
