First off , I am a 49 year old 5'7"male. I started mid December at 282 lbs and now Jan 31, I am at 257. To get to where I am at, I quit soda and fast foods and started eatind salads for lunch every day and using a treadmill. At the current time I am up to treadmilling twice a day (before work and after), 2.66 miles per time at 4 mph (40 minutes)- keeping my heart rate between 120 and 130 via the incline feature. Is this too much or not enough time on the teadmill ? Oh yea, I usually only do one treadmill work out on Fridays , Saturdays and Sunday. What do all you think ? Please give me your advice.