Then the student should remain seated and hold their nose while using the stopwatch to count how many seconds they can hold their breath. Afterwards the student should record their data and more until the final stage of the experiment. In the final stage, the student will run on the spot for one minute. After this form of exercise, the student will sit and record the number of seconds they can hold their breath using the stopwatch and holding their nose to ensure no air is inhaled. After the student can no longer hold his breath, he should stop the stopwatch and record how many seconds he spent holding his breath. After all the data has been collected from the entire group of participating people, the average should be calculated for each action: sitting quietly, hyperventilating, and exercising. Once this final calculation is made, the experiment is complete and the results can be examined.