It’s not just that walking , which is great for your heart , can decrease your dementia risk .

Changes in pace and gait have been linked to increased risks of developing the condition, too, and may be considered a potential early sign of cognitive decline.

Those who walked slowly at 45 saw faster brain and bodily ageing in a 2019 study, too . They had smaller brains, more white matter lesions, and a thinner outer brain layer (signs associated with older minds).

“A slow walk is a problem sign decades before old age,” Professor Terrie Moffit, the senior author of the 2019 study, told King’s College London . Their lungs, teeth, and immune systems also aged faster.

But how do you measure your walking speed, and what’s normal for each age group?

How do I do a walking speed

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