Name: Marian Stevens

Age: 50

City: Fremont

My favorite workout: I love to swim. I quit in 2004 because of my asthma. But by early 2013, I got fed up because I had gained 80 pounds over 15 years. I made a commitment to a complete lifestyle change, which now includes Weight Watchers and a lot of activity -- primarily swimming. On one of my first attempts, I could not swim freestyle for even 25 yards, but I kept at it. Now, even on a freezing cold December morning, I will jump into an outdoor pool and swim 1,000 to 2,000 yards.

How often I exercise: I try to go every other day. I find that if I write it down on my calendar, that keeps me responsible. The victories with my weight deletion have been a wonderful journey (I call it "deletion" because we like to find what we lose, but we delete things we don't want). I love the feeling of swimming. It is like an overall body massage, and it truly cures what ails me, including an aching back. It has also improved my overall core strength. I am a member of U.S. Masters Swimming, which has a Go the Distance challenge. I started at the end of March with the goal of swimming 100 miles this year. I am at 99.08 miles as of this writing.

The hardest part: Those frigid, cold mornings when the temperature is in the 30s. It's tough to take off that cozy swim parka and run five yards to the pool and jump in.

What it teaches me: Perseverance pays off. Only this week I developed what a fellow swimmer calls "the lungs," where you feel like you can swim without stopping. It has also proven that one can get rid of a significant amount of weight after age 45. I am six dress sizes smaller and a little more than halfway to my ultimate weight "deletion" goal.

Want to share your workout or fitness routine? Email mross@bayareanewsgroup.com with answers to the above questions. Put "my workout" in the subject line.