Answer:
Obesity.
Anatomical considerations, such as the size of the chest and the location of the heart within the chest.
Movement during the test.
Exercise or smoking before the test.
Certain medicines.
Electrolyte imbalances, such as too much or too little potassium, magnesium, or calcium in the blood.
Explanation:
Declining skill or fitness level from taking a break from exercise is formally referred to as overload
Damage to the brain because it could rot that one part of your brain