1.5 - 2 hour commute is just way too long for me. The last thing I feel like doing right after a long 8+ hour shift, is spend another 2 hours on getting home. Its not practical and I would definately take a car, bus or train for a distance of that lenght. Maybe do it once a week at the very most if I like the route. But this is under normal circumstances. If your doing this for health reasons then there is no excuse that should keep you back. Better to stay away from the family an hour more and be around for many years than other way around. Health always comes first.