Introduction
On the path of pursuing long-term weight maintenance, many people tend to focus on diet and exercise, but overlook sleep deprivation and chronic stress. They also carry considerable weight in weight maintenance. Lack of sleep disrupts hormonal balance, increasing hunger and cravings for high-calorie foods. Prolonged exposure to high stress triggers emotional eating, which reduces metabolic efficiency and ultimately leads to weight rebound. Therefore, to achieve lasting weight management, it’s equally important to improve sleep quality and learn stress management.
Impact of sleep on weight management
Some studies have shown that not getting enough sleep increases the chances of obesity by 45%. Adults who sleep 7-8 hours a day have the lowest chances of obesity. The effects of insufficient sleep on weight are as follows:
Appetite-regulating hormones imbalance: Appetite-regulating hormones are ghrelin and leptin. Ghrelin is a hormone produced and released by the stomach. Ghrelin is also called the “hunger hormone”. It sends signals to remind people to eat when their stomachs are empty. Leptin is a hormone released by fat tissue. Leptin maintains energy balance so that your body doesn’t feel hungry. Ghrelin and leptin work well to control appetite and satiety. When people lack sleep, ghrelin levels increase, and they will often feel hungry, wanting to eat more. And leptin levels decrease, so you don’t feel satisfied with food and don’t feel full.
It’s not just a matter of eating more; it’s a more serious issue that makes you crave high-calorie and high-sugar-carbohydrate food even more. The relationship between sleep and food is mutual. The more calorie-dense and high-sugar-carbohydrate foods you consume can also lead to a decrease in the quality and duration of sleep.
When cortisol—a hormone linked to stress—rises, metabolic rate declines. Its secretion follows the circadian rhythm that governs the sleep-wake cycle. It is usually lowest at midnight and peaks at 9:00 am. Sleep deprivation breaks this pattern, resulting in an increase in cortisol production. Continuously high levels of cortisol lead to increased levels of insulin, which promotes the accumulation of fat, especially in the belly. Elevated cortisol levels also stress and lead to metabolic imbalance, which causes more food cravings.
Less energy for physical activity: Exercise is essential for weight maintenance and overall health. Lack of sleep makes people feel tired during the day and unmotivated to exercise, leading to a reduction in the frequency and duration of exercise as well as an increase in the risk of exercise. Chronic sleep deprivation also reduces basic activities, further decreasing calorie burning and making weight management more challenging.
Some ways to improve sleep quality
Maintain a regular sleep schedule: According to the American Academy of Sleep Medicine, adults between the ages of 18 and 60 should get seven or more hours of sleep each night. Keeping the same bedtime and wake-up time every day, even weekends, enhances the sleep-wake cycle, making it easier to fall asleep and increasing the percentage of deep sleep.
Be careful what you eat and drink before bedtime: Being too hungry or too full before bed can make it difficult to fall asleep. Continued functioning of the digestive system can interfere with deep sleep. It is recommended to stop eating 2-3 hours before bedtime. Nicotine, caffeine, and alcohol also have an effect on sleep. They have a stimulating effect on the nerves and put people in a hyperactive state, affecting sleep.
Creating a sleep-aiding environment: Keep the room in a dark and quiet environment. Avoiding blue light exposure. Stop using electronic devices one hour before bedtime. Reading a book and listening to soothing music can promote better sleep.
Don’t sleep too much in the daytime: Sleeping too much in the daytime makes you more hyperactive at night, and you lose sleepiness at night. It is recommended that naps be kept within 20-30 minutes and no more than one hour to prevent deep sleep. It’s also important to avoid napping after 4 pm; the best period is 1-3 pm.
Maintain regular exercise and a positive mood: Regular exercise can regulate the biological clock and enhance the quality of sleep. But be careful not to do vigorous activities within 3 hours before bedtime.
Anxiety before bedtime can prolong the time to fall asleep. Maintaining a good mood and doing some relaxation activities before bedtime can help you sleep.
Impact of stress on weight management
Chronic stress is psychologically and physically harmful. Stress and obesity often form a vicious cycle. Stress leads to weight gain, and weight gain exacerbates psychological burdens. The effects of stress on weight are as follows:
Insulin resistance: When the body is under stress, the adrenal glands secrete more cortisol, a “stress hormone” that rapidly raises blood sugar levels and provides the body with energy to respond to the crisis. In the short term, this physiological response is a normal protective mechanism. However, if you are in a high-pressure situation for a long period of time, sustained high levels of cortisol will keep your blood sugar high, forcing your pancreas to secrete more insulin. Over time, the cells become less sensitive to insulin, the phenomenon of insulin resistance occurs, and the cells become increasingly insensitive to insulin signals. This not only leads to the accumulation of fat but also to the development of type 2 diabetes.
Emotional eating: From an evolutionary perspective, humans are naturally inclined to seek food comfort under stress. Foods high in sugar and fat quickly stimulate the brain to release dopamine, bringing a brief sense of pleasure and relieving anxiety. This “emotional eating” is the body’s natural response. At this point, strict dietary restriction may instead increase stress and make people want to indulge even more. This will lead to weight gain in the long run.
Less energy for physical activity: Chronic stress can significantly drain a person’s energy and enthusiasm, making even basic activities feel exhausting. People lose the desire to exercise, while sedentary time increases. Reduced daily calorie consumption leads to fat accumulation and weight gain.
Some ways to reduce stress
Regular exercise: Regular exercise is an effective way to relieve stress and improve focus. Whether it’s walking, running, cycling, or any other form of exercise you love, it can improve your mood state by boosting endorphin production, significantly reducing anxiety and irritability.
Meditation: Meditation is a practice of achieving inner peace through concentration training. You can do meditation training at any time and place. When feeling stressed, you can stop what you are doing and close your eyes, and focus on your breathing for 5-10 minutes. It can be very helpful in calming down your emotions and thus relieving stress.
Talk with someone: Sharing your feelings is a good way to relieve stress. Whether it’s confessing your stress to a friend or family member, or writing it down in a journal. You don’t need them to give you a solution; simply being heard and understood can significantly reduce stress. You can also seek professional therapy to provide you with more support and guidance.
Conclusion
To achieve effective weight management, it is important to emphasize sleep quality and stress management in addition to diet and to avoid the risk of weight rebound, which can lead to long-term weight maintenance.