We have often heard not to go for a swim after eating a large meal; we need to
give our food time to digest before exercising. Which divisions are competing for
control?
Sympathetic division and somatic nervous system
Autonomic and somatic nervous systems
Sensory and motor divisions
Sympathetic and parasympathetic divisions

When you eat a large meal, your body activates the parasympathetic division of the autonomic nervous system to help with digestion. This division promotes relaxation and encourages blood flow to the digestive tract. However, if you jump into a swim right after eating, the sympathetic division may kick in, increasing your heart rate and redirecting blood flow away from your digestive organs to your muscles. This conflict can lead to discomfort, hence the advice to wait before swimming!

This fascinating interplay between the sympathetic and parasympathetic divisions reminds us how our body is constantly working to balance various functions. It’s like a see-saw; when one side gets activated, the other is subdued. So, if you really want to enjoy that swim without feeling queasy, give your body some time to digest before making a splash!