I hope you don’t mind if I share a personal story?
My teenage years were spent in Germany and Germany, I might add, has the best indoor and outdoor pools in the world. While in high school there in the 1980’s, every Friday, our last two periods were devoted to mandatory swimming where the instructor would teach us proper swimming techniques the first hour and allow for a free play after that. My passion for swimming was born and I have not stopped swimming since. I love it! Like you said, swimming is not just about cardio but also about strength training & has many, many cognitive benefits, too. I swim 4 times a week- 45 -60 minutes.
Mark Sisson is the founder of Mark’s Daily Apple, godfather to the Primal food and lifestyle movement, and the New York Times bestselling author of The Keto Reset Diet. His latest book is Keto for Life, where he discusses how he combines the keto diet with a Primal lifestyle for optimal health and longevity. Mark is the author of numerous other books as well, including The Primal Blueprint, which was credited with turbocharging the growth of the primal/paleo movement back in 2009. After spending three decades researching and educating folks on why food is the key component to achieving and maintaining optimal wellness, Mark launched Primal Kitchen, a real-food company that creates Primal/paleo, keto, and Whole30-friendly kitchen staples.