This thread has so much misinformation that it's painful to read. I'd advise anyone offering advice to read "Starting Strength" (Mark Rippetoe), and if you are

This thread has so much misinformation that it's painful to read. I'd advise anyone offering advice to read "Starting Strength" (Mark Rippetoe), and if you are >40 (or >30 but in very bad physical shape), "The Barbell Prescription: Strength Training for Life After 40". That second book is actually a good read even if you are not over 40, because a) you will be, b) it contains excellent information on our physiology and biochemistry and a great rationale for doing strength training rather than just cardio. Don't base your decisions on what has been written in this thread. Most information here is anecdotal, garbage, or both.