✔ 最佳答案
This is common, especially when one is trying to lose weight. There are a lot of factors that contribute to this: Water weight, salt intake, gas, not going to the bathroom, caloric intake and whether food was lean or fat, and how much you exercised or not in the days before. Even the time of day that you are weighing yourself makes a difference. You are typically lighter in the morning before eating or drinking than later in the day. If you are gaining muscle from working out, the scale will read higher as well. Muscle weighs more than fat. The best way to keep tabs is by using a tape measure to measure your waist or other body parts to see if you're losing inches. Weigh yourself only once a week, same time of day/best upon waking up, in the same clothing each time you weigh yourself.