I'd like to start jogging and to do it as painlessly as possible. I'm already walking 3 - 4 miles a day.
I read somewhere that a good way to go about this is a run/walk plan. Would it make sense to break up the walks I'm already taking into alternating running for two minutes with walking for three minutes? And how long should the session be at first? How quickly can I expect to be able to lengthen the amount of time I spend running?
Disclaimer: I have NEVER jogged in my life.