What is the quickest way to burn calories?

The quickest way to burn calories is through high-intensity exercises such as:

1. Interval Training: Alternating between short bursts of intense activity and rest periods.
2. High-Intensity Interval Training (HIIT): Short, intense workouts that involve bursts of high-intensity exercise followed by short rest periods.
3. Cardiovascular Exercises: Running, cycling, swimming, and jumping rope are all great options.
4. Compound Exercises: Activities that engage multiple muscle groups such as squats, burpees, and jumping jacks.
5. Strength Training: Lifting weights or doing bodyweight exercises like push-ups, squats, and lunges.

Remember, while these activities burn calories quickly, it's essential to maintain a balanced exercise routine and diet for overall health and fitness.