It Turns Out Intensive Exercise May Actually Cause Anaemia

Last year, I tried to get back into running – and while changes to my joints put me off the sport for a while, I’m now starting again, right from ground zero.

Things will be different this time, I reckon. First of all, I’ll start slower (more Jeffing, perhaps). 

And secondly, I’ll keep an eye on my iron intake. Years ago, while training for a marathon, a blood test showed I was anaemic: facts I thought were unrelated.

But it turns out they might not have been. Some research suggests that endurance athletes...