Five factors linked to weight loss struggles. While it’s no secret that losing weight isn’t always the easiest pursuit, it turns out there are five main reasons why. Studies have found that counting calories, having a carb-heavy breakfast, not sleeping enough, eating when not hungry, and hanging out with bad influences are all factors that contribute to weight-loss struggles. Experts recommend focusing on nutritious food instead of worrying solely about the calorie count; shooting for at least 15 grams of protein; getting at least eight hours of sleep; eating only when hungry and not when bored, stressed, or  and hanging out with people that can motivate you and share your goals.