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A 15-minute cardio workout mixes quick intervals and steady moves to raise your heart rate, burn calories, and build daily stamina.

Cardio to burn 400 calories usually takes 25–60 minutes, depending on workout type, intensity, your body weight, and fitness level.

cardio to burn 300 calories usually takes 25 to 45 minutes, depending on your pace, size, and workout choice.

In 30 minutes of cardio, most adults burn roughly 150–400 calories, depending on body weight, workout type, and intensity.

A 30-minute cardio workout raises your heart rate with brisk moves that build stamina, burn calories, and help you reach weekly activity goals.

A 45-minute cardio workout strings together warm-up, heart-rate-based intervals, and cool-down to build stamina and care for heart health.

A cardio 30-20-10 workout stacks 30, 20 and 10 second intervals from easy to all-out repeated in blocks to build speed, fitness and calorie burn.

An 8-minute cardio workout is a short burst of continuous movement that raises your heart rate, supports heart health, and fits into packed days.

On a keto diet, avoid sugary and starchy carbs so you can stay under roughly 20–50 grams of net carbs per day.

A high-sensitivity C-reactive protein test detects low-grade inflammation to help your doctor estimate long-term risk of heart attack and stroke.