Why should you breathe side to side when swimming the front crawl?

Answer 1

To breathe while swimming front crawl, all you have to do is turn your head to the Side for a second take a quick breath, then put your face back in the water. Make sure you only turn your head, not the rest of your body. You can turn to whatever side feels most comfortable. You should breathe about every three strokes.

Answer 2

You exert less energy while doing so. It also helps you keep a steady rhythm. This also helps your momentum, which allows you to swim faster.

Front crawls are also more strenuous. This is due to the fact that you are not as streamlined in Front Crawl position. This causes you to exert more energy when trying to swim.