The title is a bit deceptive but I've been very curious about something that many people who diet have found. Over the course of a few months, I was losing weight at a steady pace of 2lb/week. At one point I decided to make the most of my gym membership and start doing resistance training as well for around 30 minutes twice a week. The weight loss just stopped dead in its tracks. I never gained weight (unlike what a lot of people said happened to them) but my weight loss definitely slowed to a crawl. Everywhere online and everyone I talk to says that this is to be expected, but why on Earth does this happen? My understanding of physiology is pretty bad, but I figured that, as you lose weight, your body is going through fat for the energy to run your body. If nothing else changes and you start resistance training, why exactly does weight loss stop (or even reverse)? You're still giving your body less energy than it needs to run on, so why does this happen? TELL ME STUFF SCIENCE!!!!!