Your stroll is a vital sign: a brisker walk tracked with longer life in 4,067 older Britons

Doctors have long suspected that how fast you walk says a lot about how well you are. A study in JAMA Network Open followed 4,067 adults in the UK, average age about 69, for nearly 12 years, measuring their pace two ways: a short walking test and a wrist tracker worn for nine days of everyday life. In both measures, faster walkers were less likely to die during the follow-up, even after accounting for other health and lifestyle factors; 739 participants died over the period. The researchers are careful: this shows walking speed is a useful signal of overall health, not proof that forcing a faster pace adds years. Still, it is a number anyone can check — no lab required.

SDG 3 · Good health and well-being