For today’s edition of Dear Mark, I’m answering two questions. First up are some swimming tips for a novice swimmer who read last week’s post and wants to incorporate swimming into the schedule. What strokes to learn? What workouts to try? I also discuss the downsides of chlorinated pools. Next, a new study claims that whether you lift heavy weight for low reps or lift light for high reps has no effect on strength or size, so long as you go to failure. Is this true?