I just had a talk with a Paleo doctor, and he told me that he recently read of a study with overweight people who were put on an exercise regime, and their metabolism slowed down. The conclusion of the study was that exercise can slow your metabolism. WTF??? How can that make sense? Surely the type of exercise is relevant?

Then I found this article, which says that no exercise increases your metabolism - Exercise not likely to rev up your metabolism - Health - Fitness - Smart Fitness - NBCNews.com

Anyone got any thoughts?