Left anterior bundle branch conduction block cannot be recovered by exercise. Bundle branch conduction block is a dysfunction of the heart’s conduction system caused by myocarditis, myocardial ischemia, and myocardial fibrosis. The cells that make up the cardiac conduction system undergo necrosis, fibrosis, and other changes and can no longer take on the function of conducting electrical signals. Daily exercise can promote metabolism and health, but it cannot restore the conduction cells that are already impaired, nor can it regenerate the conduction cells, so it cannot restore the conduction block that has already occurred to normal through exercise. If left anterior bundle branch conduction block occurs, you should go to the hospital in time, and if necessary, under the guidance of the doctor reasonable treatment, so as not to miss the best time for treatment.