Your Challenge:

Track 100 miles of exercise by the challenge end date. Anything goes--run, swim, bike, walk, elliptical, or even dance your way to the century mark.

Why Do This?

The Top-7 Benefits of Exercise

1. Helps control weight
2. Fights chronic conditions and disease
3. Improves mood
4. Boosts energy
5. Promotes better sleep
6. Improves your sex life
7. It’s fun

• Is 100 miles too much? When to send your shoes to shoe heaven from the experts at REI
• Exercise Makes Us Happy—It’s Science, huffingtonpost.com
• 23 Ways to Push Through a Tough Workout

Nexercise
(Free; iTunes)

RunKeeper
(Free; iTunes, Android)

Workout Trainer
(Free; iTunes and Android)