A human biologist has revealed one reason why you might not be losing weight even though you’re exercising and eating a healthy diet. Gary Brecka has gone viral on TikTok after explaining how levels of a certain hormone can have a huge impact on weight through water retention. Why you might not be losing weight The expert said he has women coming to him all the time saying they’ve been working out five times a week for three months and haven’t lost a single pound. “When you look at their hormones, you realize that they’re estrogen dominant, meaning their estrogen is out of ratio,” he said. Est…