Scientists in Cambridge have discovered a process that drives a “catastrophic” change in blood composition that explains why it’s often all downhill when you reach 70. Ultimately, they believe, the discovery could lead to therapies to slow ageing and prevent previously healthy people quickly becoming becoming frail. The process increases the risk of blood cancers and anaemia and impairs the effectiveness of white blood cells to resist infection. But – more excitingly – the researchers think similar changes could take place in other orgains throughout the body – from the skin to the brain.

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