By A Mystery Man Writer
Physical fitness - Wikipedia
15 benefits of swimming: Weight loss and physical and mental health
40 Advanced Exercises to Try in Your 7-Day Gym Workout Plan
The Best Exercises for When You Have Low Energy
5 reasons why every runner should be swimming
Swimming vs. Running: Calories Burned, Fat Burn, Benefits
Swimming (sport) - Wikipedia
Working Out Every Day: Guidelines, Safety, and More
A 19-Minute HIIT Workout for Beginners - The New York Times
30 Minute Strength Training Workout For Swimmers
Swimming as a Workout: It's One of the Best (and Hardest) Ways to Get Fit - Men's Journal
30-Minute Swim Workout - The New York Times