Ask any expert how you should measure your running progress and they’ll tell you to track your performance. How you feel should always trump how you look, they’ll tell you – this will keep you ...

Your average 1-mile run time depends on many factors, but your age is one. Dr Stephanie Estima, fitness expert, shares the benchmarks to aim for per decade.

Here's the fun part: your mile time isn't a fixed target. It's a dynamic number influenced by many factors, with age being a significant one.

Your average 1-mile run time depends on many factors, but your age is one. Dr Stephanie Estima, fitness expert, shares the benchmarks to aim for per decade.

Your average 1-mile run time depends on many factors, but your age is a big one - Dr Stephanie Estima shares the benchmarks to aim for per decade.

Your average 1-mile run time depends on many factors, but your age is a big one - Dr Stephanie Estima shares the benchmarks to aim for per decade.© TravelCouples - Getty Images ...