While walking, hiking or doing other cardiovascular exercise, you might focus on your breathing or heart rate to gauge how hard you’re working. That’s a perfectly good approach, but it won’t tell you ...

While walking or using the stair-climber or another cardio machine, you might focus on your breathing or heart rate to gauge how hard you’re working. That’s a perfectly good approach—but it won’t tell ...

This simple walking test, backed by decades of fitness expertise, can reveal more about your cardiovascular health than you ...