The human body loses
Some studies suggest that sleep plays a role in weight loss, and specifically fat loss, during calorie restriction. In a study of people undergoing 14 days of calorie restriction, the participants lost less fat when they spent 5.5 h a day in bed than when they spent 8.5 h a day in bed [40].
It is possible to lose weight overnight, but it is not necessarily normal or healthy. The amount of weight you can lose overnight depends on several factors, such as your hydration levels, hormone fluctuations, and food intake. For example, dehydration can cause temporary weight loss because water weighs more than fat.
Medically supervised weight loss during sleep is primarily attributed to factors like respiration, perspiration, and water loss. On average, an individual may lose about 1-2 pounds during a night's sleep due to these factors.
Weight gain may occur due to sleeping after meals. For what reason? If you sleep right after eating, the body will not have enough time to burn the calories, causing fat buildup. Aside from that, the foods you consume before bedtime cannot be used as a source of energy.
But science keeps learning new things about the human body. How many calories you take in, and how much activity you engage in, still matters… a lot. But several studies over the past decade have shown that eating late meals might make it harder to lose weight.
So overall, going to bed hungry may help reduce caloric intake and improve insulin sensitivity, it can also lead to poor sleep quality, increased cravings, and a slowed metabolism. The best way to achieve weight loss is through a combination of balanced meals, regular physical activity, and quality sleep.
Getting enough sleep and getting this sleep at the right times for your body clock can help you lose belly fat, however. So, if sleeping on your back helps you do this, it may be the best position for you. If not, any position that helps you get enough sleep can help reduce belly fat.
Use your scale every morning after you empty your bladder (and before you eat or drink anything), wearing as little clothing as possible. Because you lose water weight overnight, you'll get a lower number, too. Place your scale on a hard, even surface—no carpeting.
Fat mass doesn't change quickly, but you can lose as much as five pounds of water in a day. The average 24-hour urine loss is about 1.8-4.4 pounds because water is heavy. By contrast, it's virtually impossible to burn off a pound of fat in a day.
Water is more than just a thirst-quencher. It offers various benefits that can aid in weight loss. These include boosting metabolism, suppressing appetite, aiding in detoxification and enhancing exercise performance.
No clinical evidence suggests sleeping prone on the stomach directly affects weight loss. While sleeping on the stomach has some health benefits that may improve sleep quality in some people, experts typically do not recommend the position.
Eating too few calories can cause your metabolic rate to slow down, meaning you may gain weight more easily.
Obesity. Sleeping too much or too little could make you weigh too much, as well. One recent study showed that people who slept for nine or 10 hours every night were 21% more likely to become obese over a six-year period than were people who slept between seven and eight hours.
The Science of Fat Loss
Think of it like a balloon losing air—it deflates, but doesn't disappear immediately. Over time, your body adjusts, but the jiggly feeling can be a temporary step along the way.
Sleeping Face Down: Lying on your stomach puts excess pressure on breast tissue, leading to flattening, sagging, and discomfort over time. Sleeping on Your Side: Side sleeping is recommended as it minimizes pressure on breast tissue, helping maintain their natural shape.
Water weight is not usually a cause for concern, but it can be uncomfortable and recurring. Reducing salt and carbohydrate intake, keeping hydrated, and frequently exercising are all good ways to lose water weight and prevent it from returning.
How long does period weight gain last? Don't worry—assuming the weight gain is just temporary water retention, your weight should return to normal soon. “Water weight usually goes away about three to five days after your period starts,” says Dr. Landry.
Although the actual time doesn't really matter, many people who eat late at night choose high-calorie foods, which brings weight gain. Late meals and snacks can also make it harder for you to fall asleep. Aim to stay out of the kitchen from a couple of hours before bedtime until you wake up the next morning.
They are low in calories and contain pectin, a fiber that helps reduce bad cholesterol levels and control blood sugar. This can help reduce your cravings for unhealthy snacks and prevent overeating. Bananas contain potassium, which helps to boost metabolism and aids in fat burning.