Can't run five minutes yet? Build your own run-walk plan

Can't run for five minutes without stopping? That's normal, and it doesn't mean you can't run. Run-walk intervals let your heart, lungs and tendons catch up together.

Set your starting interval, walking break and goal run, and this guide builds a week-by-week plan you can scrub through. It also explains the easy-pace rule, when to repeat a week, and who should check with a doctor first.