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Can Stress Cause Weight Loss? Experts Explain

Written by Andrew Le, MD

UpdatedSeptember 12, 2024

Stress directly impacts weight for many individuals, with effects differing based on personal circumstances. It can lead to either weight loss or gain, depending on the situation.

In certain instances, stress can result in skipped meals and an unhealthy diet. Interestingly, a survey investigating the influence of stress on weight found that 20% of individuals lose weight during periods of stress.

This suggests that weight loss is a real possibility during stressful times. But how does this happen? What are the underlying causes?

Keep reading to understand how stress influences weight loss, discover when it's advisable to seek medical advice, and learn effective strategies for managing weight loss induced by stress.

🔑 Key Takeaways:

  • During stress, the body releases adrenaline and cortisol, priming it for quick action.
  • Chronic and short-term stress can impact the body, potentially causing weight loss.
  • With time, chronic stress could lead to reduced food intake and even play a role in stress-related eating disorders.
  • Stress can trigger unintentional calorie burn in different ways. Some individuals turn to excessive exercise as a coping mechanism, increasing calorie expenditure.
  • Having sufficient sleep is vital for effective stress management. Create an optimal sleep environment with darkness, cool temperatures, and quietness.

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What is Stress?

Stress is a normal human reaction when individuals encounter environmental changes or challenges. It triggers physical, emotional, and cognitive responses as the body adapts to new situations.

Stress is a natural part of life; the human body is designed to experience it and react accordingly.

But have you ever wondered what stress does to your body? How do doctors diagnose stress? Let's find out.

Body's Response to Stress

When a person experiences stress, the body's autonomic nervous system controls heart rate, breathing, and vision changes. This includes activating the "fight-or-flight" response, an innate stress response mechanism that helps the body deal with stressful situations.

💡 Did You Know?

When the fight-or-flight response goes wrong, it can result in anxiety attacks. These can happen suddenly or be triggered by emotions. Find out more in our article about anxiety attacks.

During stress, the body releases hormones like adrenaline and cortisol, which prepare it for immediate action. Heart rate increases, breathing becomes faster, and the senses become heightened. These responses are helpful in situations where quick reactions are required.

However, when stress becomes chronic and persists without relief, it can lead to various physical, emotional, and behavioral symptoms.

Physical symptoms of stress include:

Emotionally and mentally, stress can cause anxiety, irritability, depression, panic attacks, and feelings of sadness. It can also lead to unhealthy coping behaviors such as excessive alcohol consumption, overeating, gambling, smoking, and substance use.

Diagnosing Stress

Stress is a subjective experience that can't be measured using objective tests. Only the person experiencing it can determine the presence and severity of their stress. Healthcare providers often use questionnaires and interviews to assess an individual's stress levels and how it affects their daily life.

If chronic stress leads to physical symptoms like high blood pressure, healthcare professionals can diagnose and treat those symptoms. The diagnosis and treatment of stress-related physical symptoms are typically done through medical assessments and appropriate interventions.

🩺 A Doctor’s Note:

Stress is highly individualized, and what might be stressful for one person may not be the same for another. Understanding and managing stress often involves personal awareness and tailored strategies.

How Does Stress Contribute to Weight Loss?

Chronic and short-term stress can affect the body, leading to weight loss.

These effects are attributed to hormonal changes, changes in appetite and digestion, increased calorie expenditure, and disruptions in sleep patterns.

💡 Pro Tip:

Changing your diet and exercising can help you lose weight. You might want to try support groups or online weight loss apps for guidance. At Buoy Health, we provide weight issue treatment to help you find the right care and learn about different treatments.

Let's further discuss this in detail.

Appetite Regulation and Hormonal Changes

Chronic stress can impact appetite-regulating hormones, causing fluctuations in hunger levels.

In some cases, stress can stimulate the release of appetite-regulating hormones, making you hungrier and potentially leading to overeating. However, short-term stress can have the opposite effect, suppressing appetite hormones.

Adrenaline and cortisol, stress hormones, play a significant role in this process.

Adrenaline can reduce your urge to eat while preparing your body for physical activity. Cortisol, on the other hand, suppresses certain body functions, including digestion and immunity, which can lead to reduced appetite.

Around 40% of people respond to stress by eating less. During tension and distraction due to work or school challenges, individuals might need to pay attention to food, resulting in smaller portions, skipped meals, or forgetting to eat altogether.

Over time, chronic stress might lead to decreased food intake and even contribute to stress-induced eating disorders.

Metabolic Changes

Stress triggers the release of corticotropin-releasing hormone (CRH) and catecholamines.

CRH reduces appetite and promotes the breakdown of fat tissues. Catecholamines stimulate the body to break down fat tissues as well.

Individual responses to stress can vary, and your preferred foods may influence how stress impacts your weight. Healthier comfort foods may result in less weight gain during stress.

Example:
Dexter and Maria are both dealing with stress.
Dexter’s preference for healthier comfort foods like fruits and vegetables helps maintain a balanced intake, preventing excessive weight gain during stress.
On the other hand, Maria’s choice of less nutritious options, combined with stress-induced changes, could lead to weight loss due to altered nutrient absorption and metabolic shifts.
This shows how personal food choices during stress can impact weight outcomes.

Digestive System Impact

Stress triggers the "fight or flight" response in the body, redirecting blood and oxygen to the limbs instead of the digestive tract.

💡 Definition:

"Fight or flight" is a physiological response triggered by stress that prepares the body to either confront a threat or flee from it.

This leads to slowed gut contractions and decreased production of digestive secretions, causing food to move more slowly through the digestive system.

The result is discomfort and symptoms such as:

These gastrointestinal issues reduce the desire to eat, potentially leading to weight loss.

Chronic stress can exacerbate these digestive disruptions, potentially leading to inflammatory bowel disease (IBD), affecting appetite and nutrient absorption.

Increased Calorie Expenditure

Stress can lead to unintentional calorie burning through various means. Some individuals resort to over-exercising to cope with stress, leading to calorie expenditure.

Additionally, nervous fidgeting, like foot tapping or other involuntary movements, can burn calories.

While moderate exercise can help reduce stress, overexercising can have negative consequences, including immune system weakening and increased feelings of anxiety and depression.

Sleep Disruption

Stress can disrupt sleep patterns, making falling asleep or maintaining quality sleep difficult. Sleep deprivation can lead to:

  • Sluggishness
  • Fatigue
  • Increased cortisol production

Disrupted sleep patterns can also impact metabolism and eating habits, potentially contributing to weight loss.

❗ Remember:

While some individuals may experience increased appetite and weight gain during stress, others may undergo weight loss due to reduced appetite, increased calorie expenditure, and disrupted digestion.

When Should Weight Loss Raise Concern?

Unintended or unexpected weight loss becomes a cause for concern when it goes beyond a minor fluctuation in weight. While losing a pound or two might not raise alarm, substantial and unexplained weight loss can harm your body.

Consult a medical professional if you have experienced a weight loss of 5% or more of your total body weight within 6 to 12 months. Moreover, seeking medical attention is essential if you notice the following signs:

  • Unintentional Weight Loss: If you lose weight without conscious effort, you should see a doctor.
  • Chronic Headaches: Persistent headaches can indicate an underlying health issue and should be evaluated by a healthcare provider.
  • Chest Pain: Experiencing chest pain requires a medical assessment to rule out any severe cardiac conditions.
  • Persistent Anxiety: If you persistently feel anxious or on edge, a professional evaluation is necessary to determine whether an underlying condition contributes to these feelings.
  • Substance Use for Coping: If you turn to alcohol or drugs as a coping method, it's essential to consult a doctor to address these coping mechanisms.

A medical practitioner can help discern whether these symptoms are linked to stress, anxiety, or an underlying medical condition. Regardless of the cause, your healthcare provider can collaborate with you to develop healthy coping strategies and, if necessary, recommend appropriate medications.

🩹 Health Tip:

When self-help techniques do not alleviate stress, seeking medical guidance is recommended. For untreated anxiety and depression, a doctor may propose behavioral therapy or medical interventions. If stress is causing or exacerbating a medical problem such as high blood pressure, consulting a doctor is crucial.

What Are Effective Ways to Manage Stress?

Losing weight during stressful periods can be challenging, but incorporating these expert tips can help you effectively manage stress levels while working towards your weight loss goals:

  • Visualization for Stress Relief: Utilize mindfulness and visualization techniques to alleviate stress and anxiety. Imagine a calming blue light moving through areas where you hold tension in your body. Envision this light absorbing and dispelling your stress.
  • Voluntary Physiological Sighing: Perform deliberate sighing to lower your heart rate and relax naturally. Practice the "voluntary physiological sigh" by taking two short inhales through your nose, then a long exhale through your mouth, repeating up to three times when stress arises.
  • Cold Water Immersion: Combat stress swiftly by immersing your face in cold water. The abrupt temperature change may stimulate the vagus nerve, reducing heart rate and decreasing stress levels.
  • Prioritize Quality Sleep: Adequate sleep is crucial for managing stress. Optimize your sleep environment with darkness, coolness, and silence. Minimize smartphone use, caffeine, and sugar before bedtime to promote restful sleep.
  • Regular Low-Impact Exercise: Engage in gentle activities like yoga or walking to boost blood circulation and alleviate stress. Avoid excessive workouts prompted by stress, and watch for signs of overexertion, such as fatigue, insomnia, or excessive soreness.
  • Opt for Magnesium-Rich Snacks: Select snacks high in magnesium, such as almonds or pumpkin seeds, to regulate your body's stress response. Reduce caffeine intake and consider switching to decaffeinated or herbal tea to promote relaxation.
  • Reestablish a Consistent Eating Routine: Combat stress-induced eating disruptions by reintroducing a regular eating schedule. Set alarms on your devices to remind yourself to eat, even if it's just a small portion, to stabilize blood glucose levels.
  • Choose Protein and Fiber-Rich Foods: Opt for foods high in protein and fiber to maintain stable energy levels and mood. Prioritize whole foods like fruits, vegetables, and whole grains for a positive impact on your body.
  • Incorporate Mood-Boosting Foods: Consume foods with mood-enhancing properties, such as oranges, carrots, leafy vegetables (rich in vitamin B), whole grains (serotonin-boosting complex carbs), salmon, tuna (omega-3 fatty acids), and nuts and seeds (omega-3 fatty acids).
  • Avoid Blood Sugar Spikes: Steer clear of sugary and highly processed foods that can lead to energy crashes. Minimize or eliminate fried foods, baked goods, candy, chips, sugary drinks, and processed foods.
  • Choose Market Fresh Meals: When you need to get up for cooking, explore the fresh food section of your local market. Opt for the salad bar or hot bar for healthier comfort food alternatives to takeout.
  • Post-Workout Nutrition: Refuel after exercise with a snack rich in protein or healthy carbohydrates to restore energy and prevent side effects like lightheadedness or low blood sugar. Consider options like avocados, bananas, nut butter, trail mix, rice cakes, and Greek yogurt.

By incorporating these tips into your weight loss journey, you can effectively manage stress and create a healthier balance for your body and mind.

🗒️ Related Articles:

To learn more about weight management, check out some of our articles:

Wrap Up

Stress directly impacts weight, causing loss or gain based on individual factors.

Hormones, appetite changes, calorie expenditure, digestion disruptions, and sleep issues influence stress-driven weight loss.

To manage stress-induced weight loss, use stress-relief techniques, ensure quality sleep, exercise gently, choose nutrient-rich foods, and establish a consistent eating routine.

Effective Stress Management Techniques for Weight Loss

While stress can contribute to weight gain, implementing stress management techniques can help support your weight loss goals. Here are some evidence-based strategies to manage stress and promote a healthier lifestyle:

1. Practice mindfulness meditation: Mindfulness-based stress reduction has been shown to lower cortisol levels and reduce stress-related eating. Take a few minutes each day to sit quietly, focus on your breath, and observe your thoughts without judgment.

2. Engage in regular physical activity: Exercise is a powerful stress reliever and can help regulate cortisol levels. Aim for at least 150 minutes of moderate-intensity aerobic activity per week, such as brisk walking, cycling, or swimming.

3. Prioritize sleep: Adequate sleep is crucial for managing stress and maintaining a healthy weight. Create a relaxing bedtime routine and aim for 7-9 hours of quality sleep each night.

4. Implement time management strategies: Feeling overwhelmed can increase stress levels. Use tools like to-do lists and calendars to organize your tasks and create a sense of control over your daily life.

5. Connect with others: Social support can help buffer the effects of stress. Make time for meaningful connections with friends and family, or consider joining a support group for individuals on a weight loss journey.

6. Try progressive muscle relaxation: This technique involves tensing and then relaxing different muscle groups in your body, promoting physical and mental relaxation.

7. Practice deep breathing exercises: Deep, diaphragmatic breathing can activate the body's relaxation response and reduce stress levels. Try taking slow, deep breaths for a few minutes when feeling overwhelmed.

By incorporating these stress management techniques into your daily routine, you can create a more balanced and supportive environment for your weight loss efforts. Remember, managing stress is an ongoing process, so be patient with yourself as you develop these healthy habits.

Prioritize a balanced well-being for a healthier you!

FAQs on Stress and Weight Loss

What happens when stress leads to weight loss?

Stress and poor eating habits from stress can cause inflammation and weight loss. This inflammation activates the vagus nerve, affecting gut processing and metabolism.

Can stress alone cause weight gain?

Stress can lead to weight gain, not solely from eating more. Research shows chronic stress might accelerate new fat cell formation.

Is weight loss linked to overthinking?

Chronic stress, including overthinking, can exacerbate symptoms and lead to conditions like irritable bowel syndrome, potentially causing reduced food intake and weight loss.

References

  • Cleveland Clinic
  • WHO
  • Your Hormones
  • CAPS
  • Helpguide.org. (2023). Stress Management: Techniques & Strategies to Deal with Stress. https://www.helpguide.org/articles/stress/stress-management.htm
  • Christaki, E., Kokkinos, A., Costarelli, V., Alexopoulos, E. C., Chrousos, G. P., & Darviri, C. (2013). Stress management can facilitate weight loss in Greek overweight and obese women: a pilot study. Journal of Human Nutrition and Dietetics, 26(s1), 132-139. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6296480/
  • University of Utah Health. (n.d.). Stress Management & Weight Loss. https://healthcare.utah.edu/weight-management/stress-weight-loss