Age is more than a number when it comes to policy

Using data from the US and England on the physiological abilities of over-50s, Kotschy, Bloom and Scott found that the healthiest 10 per cent of the population at age 90 are close to the same level of frailty as the median 50-year-old.

Average health and fitness levels by chronological age can also change over time. In the UK, for example, 70-year-... See more