Age expert wrote:
Eliud’s results may seem surprising but that is because, in Kenya, on the equator so further away from the centre of the earth, the time taken to orbit the sun is greater, so each year takes a longer time. So, to us Europeans and Americans, it seems like it has been 19 years since Eliuds WC victory, but it has actually been more like 10, explaining Eliud’s great longevity. This also explains the relatively short career of some Kenyans based out of Europe, such as Daniel Komen, who struggled to adapt to the much faster ageing process.
This is true, and that's why Jakob, who is from close to the arctic circle, is effectively in his late 20's now, and likely will be winding down his career soon.