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1. Slow walking at 45 'a sign of faster ageing'.

2. Slower walkers have older brains and bodies at 45.

3. Rasmussen LJH, Caspi A, Ambler A, et al. Association of Neurocognitive and Physical Function With Gait Speed in Midlife. JAMA Netw Open. Published online October 11, 20192(10):e1913123.

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