I live about 3.2 miles from where I work, and the most efficient way to commute is running there in the morning and back in the evening.
- Is 2 runs a day 3-5 days a week healthy?
- Does it increase my risk of injury?
- Especially repetitive stress injury?
- I've had problems with this before from long-distance running in my ankles and knees
- Would it be better to alternate between running and biking?