Respiratory problems: - Obesity causes lungs to "become Platinum XT 1000 smaller" in size and chest wall become heavier to lift in the process of breathing in. The most common respiratory problem is sleep apnea. Sleep apnea is a condition where by an individual stops breathing for some time while asleep. A soft tissue in the throat collapses around the air way probably due to weight, http://t-rexmuscleadvice.com/platinum-xt-1000/