Answer: Bradycardia and a slowing of the metabolic rate
Explanation:
The diving reflex in the human beings is characterized by the slow heart rate and breath-holding that can dive the bradycardia).
There is less flow of blood in the limbs and mean arterial blood pressure increases. These are some of the reflexes which is a result of diving in water.
The bradycardia might results in the increased parasympathetic stimulus to the pacemaker naturally present in the heart.
