Get off the Couch!! – I don’t recommend people to start running, if they don’t walk first. Start slow! For good health, we need about 30 mins of cardiovascular exercise 5-6 days a week. Do something that gets your heart pumping and blood moving. There are plenty of websites that will help track your progress. I will be honest, there is no way I can run 5-6 days a week. So, I try to run 3-4 days a week for about 1 hour. Are you interested in training for a 5K (3.1 miles), how about a half-marathon, or a whole marathon? Start with short term goals and work up. Again, there are plenty of websites, here is my favorite: http://www.coolrunning.com/engine/2/2_3/181.shtml.
You don’t have to join a gym, but definitely check with your insurance. Some insurances are actually paying for your gym membership, which I think is brilliant. After all, it is cheaper that paying for a hospital stay after a heart attack! Just saying..