Cardio Training

New research suggests you don’t need to exercise every day to stay healthy

If workdays leave no room for the gym, the latest numbers on your Saturday run may change how you plan the week.

Just 3 minutes of sprinting may trigger changes that 90 minutes of cardio cannot

Six 30-second sprints triggered far more changes in heart- and metabolic-health proteins than a 90-minute moderate bike ride.

Walking or running: Which one actually extends your lifespan more?

Once you match calories, the two are much closer than you'd expect.

How to get more out of your walks

A daily walk can benefit your energy levels, heart health, blood sugar and the body's stress levels, among...

New research suggests you don’t need to exercise every day to stay healthy

If workdays leave no room for the gym, the latest numbers on your Saturday run may change how you plan the week.

Just 3 minutes of sprinting may trigger changes that 90 minutes of cardio cannot

Six 30-second sprints triggered far more changes in heart- and metabolic-health proteins than a 90-minute moderate bike ride.

Walking or running: Which one actually extends your lifespan more?

Once you match calories, the two are much closer than you'd expect.

How to get more out of your walks

A daily walk can benefit your energy levels, heart health, blood sugar and the body's stress levels, among...

Why one long walk may protect your heart more than several short ones

A UK Biobank study of 33,560 adults ties longer, unbroken walks to sharply lower heart and death risks.

Two minutes of all-out sprinting can burn as many calories as a 20-minute jog

A small Canadian study says short repeat sprints match a longer easy run.

What should your VO2 max be? The healthy range sorted by age and sex

Your smartwatch shows a number few people know how to read. Here is the honest range.

Your cardiorespiratory fitness may predict your lifespan better than your cholesterol

Cardiologists now call fitness a stronger mortality signal than most lab numbers.

Cycling vs. running: which is better for your heart, joints and longevity?

Two of the world's most popular cardio workouts, one big trade-off between your knees and your bones.

How hard should your workout be? Target heart rate zones sorted by age

A simple formula and one number on your wrist tell you if your workout counts.