8 Surprising Things That Slow Down Your Metabolism
Jul 16, 2025 By Noa Ensign

Advertisement

Your metabolism plays a crucial role in determining how your body uses energy, but certain habits and factors can slow it down without you even realizing it. From lifestyle choices to overlooked health issues, understanding these surprising culprits can help you make informed decisions to keep your metabolism running smoothly and efficiently.

1. Skipping Meals or Eating Too Little

The most common misconception is that to lose weight, fast, a person has to reduce the amount eaten, however extreme dieting is not essentially beneficial. The body experienced fuel deficiencies, so it goes into the starvation mode, and the metabolism is slowed down to save energy. It can lead to difficulty in fat loss despite time spent trying to lose weight, which can culminate to your body storing fat so that it can survive. Additionally, going without meals may make you feel tired, angry and have an ability of overeating in the evening.

Solution: Consume balanced diets at intervals during the day. Trend towards nutrient dense foods such as lean protein, whole grain, fruits, vegetables, and healthy forms of fat in order to ensure your metabolism is operating effectively. Nuts, yogurt or fruit snacks can be included in order to stabilize the sugar level in the bloodstream and to avoid hunger pangs.

2. Lack of Quality Sleep

Sleeping badly does not only make you sleepy, it can drastically affect how your metabolism and hunger receptors work. Lack of sleep interferes with leptin and ghrelin, the hormones that signal hunger and fullness, causing a person to have an increased risk of appetite and desire to eat high-calorie foods, rich in sugar. Furthermore, it has also been found that lack of sleep might reduce your metabolism rate thus adding up to inability to burn calories.

Solution: Shift from the goal of 7-9 hours of quality sleep in bed to sleep (not so much to rest). Establish a regular sleep pattern by sleeping and waking up at a certain time every day even during the weekend. Create some kind of a restful bedtime routine which may involve reading, meditation or taking a warm bath to remind your body that it is time to go to bed. Keep screens, caffeine, and heavy meals to the minimum by bedtime to enhance your sleep quality.

3. Dehydration

Even mild dehydration can negatively impact your metabolism. Water plays a vital role in almost every cellular process, including calorie burning and fat metabolism. Without adequate hydration, your body struggles to perform these functions efficiently, leading to a slower metabolism. Research even suggests that drinking water can temporarily boost your metabolism by up to 30%, helping your body burn calories more effectively. Staying hydrated also helps curb unnecessary snacking, as thirst is often mistaken for hunger.

Solution: Aim to drink at least 8-10 glasses of water daily. Start your morning with a glass of water to kickstart hydration and boost your energy. Keep a bottle of water handy throughout the day as a reminder to keep sipping, especially during hot weather or after exercise when dehydration is more likely.

4. High Stress Levels

Chronic stress can wreak havoc on your metabolism. When you're under constant stress, your body releases higher levels of cortisol, a hormone that slows metabolism and can lead to fat storage, particularly around the abdomen. Over time, high cortisol levels can disrupt other hormones, making it harder for your body to maintain a healthy weight. Stress is also a common trigger for emotional eating, often leading to cravings for high-calorie, sugary foods, which further impact your metabolic health.

Solution: Incorporate stress management techniques into your routine to reduce cortisol levels. Activities like meditation, deep breathing exercises, or yoga can help calm your mind and body. Regular physical activity, such as walking, running, or even dancing, not only reduces stress but also promotes the release of endorphins, your body’s natural mood boosters. Additionally, ensuring you get enough sleep and maintaining a balanced diet can significantly help in managing stress levels effectively.

5. Sitting for Long Periods

A sedentary lifestyle significantly slows down your metabolism by reducing muscle activity, which is essential for burning calories throughout the day. Prolonged sitting not only decreases calorie expenditure but can also lead to muscle loss over time, further diminishing your body’s ability to burn calories efficiently. Additionally, long periods of inactivity can negatively impact circulation, energy levels, and even posture.

Solution: To combat the effects of prolonged sitting, take short breaks every hour to stand up, stretch, or walk around. Even just a few minutes of light movement can reactivate your muscles and boost circulation. Consider using a standing desk or alternating between sitting and standing while working. Incorporating more movement into your daily routine, such as taking the stairs or walking during phone calls, can help counteract the negative effects of sitting for too long.

6. Not Eating Enough Protein

Protein plays a vital role in maintaining a healthy metabolism. It requires more energy to digest compared to fats or carbs, a process known as the thermic effect of food (TEF). This means that eating protein can actually help you burn more calories during digestion. Additionally, protein supports muscle maintenance, which is crucial since muscles burn more calories at rest than fat. A diet lacking in protein can reduce your calorie-burning potential, weaken your muscles, and slow your metabolic rate over time.

Solution: Make protein a key component of your diet by including protein-rich foods in every meal. Examples include eggs, lean meats like chicken and turkey, beans, lentils, tofu, Greek yogurt, and nuts. These foods not only support muscle maintenance but also keep you feeling full longer, making it easier to manage your overall calorie intake. If you’re active or trying to build muscle, consider including a source of protein within 30 minutes of exercising to aid in recovery and muscle repair.

7. Extreme Dieting or Yo-Yo Dieting

Repeatedly losing and regaining weight (yo-yo dieting) can wreak havoc on your metabolism. When you engage in extreme dieting, your body often starts to burn muscle along with fat, leading to muscle loss. Since muscle is metabolically active and burns more calories at rest than fat, losing muscle mass lowers your resting metabolic rate and makes it harder to maintain weight loss. Additionally, extreme diets can leave your body feeling deprived, which can trigger overeating later on and perpetuate the cycle.

Solution: Focus on sustainable, long-term lifestyle changes rather than quick fixes. Adopt a balanced diet with adequate protein, healthy fats, and carbohydrates to fuel your body. Incorporating strength training into your routine can help preserve muscle mass during weight loss, boosting your metabolism and improving overall health.

8. Certain Medications

Certain prescription medications, such as those for thyroid disorders, depression, or high blood pressure, can have unintended side effects that slow down metabolism. These medications may alter your body's natural processes, such as energy regulation and hormone production, which can lead to weight gain or difficulty losing weight. While these side effects may not affect everyone, they can be frustrating and difficult to manage for those who experience them.

Solution: If you suspect your medication is affecting your metabolism, consult your doctor or healthcare provider. They can help determine whether an alternative treatment or dosage adjustment might be more suitable for you. Never stop taking prescribed medication without professional advice, as this could lead to serious health consequences. Open communication with your doctor is key to finding a solution that works for your health and your metabolism.

Conclusion:

Metabolism is influenced by various lifestyle and environmental factors. By addressing these surprising slowdowns—such as poor sleep, dehydration, and chronic stress—you can help keep your metabolism functioning optimally. Small, consistent changes in diet, activity, and stress management can make a significant difference in maintaining a healthy metabolic rate.

Advertisement

Related Articles
HEALTH

Healthy Minds, Healthy Lives: The Crucial Brain Foods All Children Need

HEALTH

Spring Clean Your Fitness Routine: Shake Off Old Habits and Refresh Your Goals

HEALTH

Boost Your Productivity: Technology Tricks for Staying Active at Work

TRAVEL

Tour Six U.S. National Parks by Train

TRAVEL

A Relaxed Two-Day Itinerary For The Best Weekend In Porto

TRAVEL

Explore the Real America by Hitchhiking Across the Country

HEALTH

Marburg Hemorrhagic Fever: Key Warning Signs You Should Never Ignore

HEALTH

Eat Right and Protect Your Health: Diabetes Risk Reduced, Says Data

HEALTH

Master the Basics: Muscle Building Do’s and Don’ts

HEALTH

Understanding Incisional Hernias: Causes, Symptoms, and Treatment

HEALTH

12 Essential Tips for Healthy Holiday Eating

HEALTH

How Much Caffeine Is Really in Your Green Tea: Surprising Facts Revealed