Swimming: Why Technique Is Everything

This helpful, comprehensive and curiously un-bylined piece in Men’s Health is, in Geezer’s exceedingly biased opinion, the first and last word for the amateur swimmer. It’s the essential "why to do it" –answer: A good swim reduces stress and leaves you feeling
energized and healthy. It improves your range of motion and joint
health and is the ideal adjunct to any workout program, because it
improves aerobic capacity and cardiovascular fitness without impact.
Injuries are practically nonexistent in this sport." and "how to do it"–answer: too long include here, but definitely worth reading–piece. Let’s just say, as this piece makes clear, with swimming, technique is everything. Read more before entering pool.