New: Parents' stress may be quietly driving childhood obesity
Endocrine and Metabolic DisordersMedically Reviewed

Overweight and Obesity

More than two-thirds of American adults carry excess weight that puts their health at risk. Overweight and obesity have become so common that many people don't realize how significantly extra pounds can affect their wellbeing, energy levels, and long-term health outcomes.

Symptoms

Common signs and symptoms of Overweight and Obesity include:

Feeling winded during normal daily activities
Joint pain, especially in knees, hips, and back
Fatigue and low energy levels throughout the day
Difficulty sleeping or sleep apnea
Heartburn and acid reflux symptoms
Sweating more than usual with minimal activity
High blood pressure readings
Irregular menstrual periods in women
Skin problems in body folds
Difficulty fitting into clothes
Reduced flexibility and range of motion
Mood changes or depression

When to see a doctor

If you experience severe or worsening symptoms, seek immediate medical attention. Always consult with a healthcare professional for proper diagnosis and treatment.

Causes & Risk Factors

Several factors can contribute to Overweight and Obesity.

Obesity develops when you consistently consume more calories than your body burns for energy.

Obesity develops when you consistently consume more calories than your body burns for energy. Your body stores these excess calories as fat tissue, primarily around your abdomen, hips, and other areas. While this sounds simple, the reality involves a complex interplay of factors that influence both how much you eat and how efficiently your body processes food.

Your genes influence how your body regulates hunger, stores fat, and burns calories.

Your genes influence how your body regulates hunger, stores fat, and burns calories. Some people inherit a slower metabolism or stronger appetite signals that make weight management more challenging. However, genetics alone don't explain the dramatic increase in obesity rates over recent decades. Environmental factors have created what researchers call an "obesogenic" environment where high-calorie, processed foods are easily available while physical activity has decreased.

Modern lifestyles contribute significantly to weight gain.

Modern lifestyles contribute significantly to weight gain. Many jobs involve long hours of sitting, while convenient transportation reduces daily physical activity. Food portions have grown larger, and highly processed foods engineered to be highly palatable are widely available. Stress, lack of sleep, and certain medications can also disrupt the hormones that regulate hunger and metabolism, making weight management even more difficult.

Risk Factors

  • Family history of obesity or weight-related conditions
  • Sedentary lifestyle with minimal physical activity
  • Diet high in processed foods, sugar, and refined carbohydrates
  • Irregular eating patterns or frequent skipping meals
  • Chronic stress and poor stress management
  • Getting less than 7 hours of sleep per night
  • Certain medications including antidepressants and steroids
  • Medical conditions like hypothyroidism or PCOS
  • Age-related metabolic changes, especially after 40
  • Socioeconomic factors limiting access to healthy foods
  • Emotional eating patterns or food addiction behaviors
  • Previous attempts at restrictive dieting

Diagnosis

How healthcare professionals diagnose Overweight and Obesity:

  • 1

    Healthcare providers typically begin with calculating your body mass index (BMI) using your height and weight measurements.

    Healthcare providers typically begin with calculating your body mass index (BMI) using your height and weight measurements. While BMI has limitations and doesn't account for muscle mass or body composition, it provides a standardized starting point for assessment. A BMI between 25-29.9 indicates overweight, while 30 or above suggests obesity. Your doctor may also measure your waist circumference, as excess abdominal fat carries higher health risks.

  • 2

    Beyond the numbers, your healthcare provider will evaluate your overall health picture.

    Beyond the numbers, your healthcare provider will evaluate your overall health picture. This includes checking blood pressure, blood sugar levels, cholesterol panels, and liver function tests. They'll ask about your eating habits, physical activity levels, sleep patterns, and any symptoms you're experiencing. Family history, medications, and previous weight loss attempts are also important parts of the assessment.

  • 3

    Sometimes additional tests are needed to rule out underlying medical causes of weight gain.

    Sometimes additional tests are needed to rule out underlying medical causes of weight gain. These might include thyroid function tests, cortisol levels, or screening for insulin resistance. Your doctor may also assess for conditions commonly associated with excess weight, such as sleep apnea, fatty liver disease, or joint problems. This comprehensive evaluation helps create an individualized treatment plan that addresses your specific situation and health needs.

Complications

  • Carrying excess weight increases your risk for numerous health conditions, some of which can be serious or life-threatening.
  • Type 2 diabetes is one of the most common complications, occurring when your body becomes resistant to insulin or can't produce enough to manage blood sugar levels effectively.
  • High blood pressure and heart disease are also closely linked to obesity, as extra weight forces your heart to work harder to pump blood throughout your body.
  • Other significant complications can include sleep apnea, where breathing repeatedly stops during sleep, leading to poor sleep quality and daytime fatigue.
  • Fatty liver disease, certain types of cancer, gallbladder disease, and osteoarthritis in weight-bearing joints are also more common in people with obesity.
  • Women may experience fertility problems and complications during pregnancy.
  • The good news is that many of these complications can improve significantly with even modest weight loss, and some may be completely reversible with sustained lifestyle changes.

Prevention

  • Prioritizing 7-9 hours of quality sleep each night
  • Managing stress through healthy coping strategies
  • Staying hydrated with water rather than sugary drinks
  • Limiting alcohol consumption
  • Building strong social support networks
  • Regular health check-ups to catch problems early

Successful weight management typically involves a combination of dietary changes, increased physical activity, and behavioral modifications.

Successful weight management typically involves a combination of dietary changes, increased physical activity, and behavioral modifications. The most effective approach is gradual, sustainable changes rather than drastic restrictions. A moderate calorie reduction of 500-750 calories per day can lead to steady weight loss of 1-2 pounds per week. Focus on eating more whole foods like vegetables, lean proteins, and whole grains while reducing processed foods, sugary drinks, and large portions.

Lifestyle

Physical activity plays a crucial role in both weight loss and long-term weight maintenance.

Physical activity plays a crucial role in both weight loss and long-term weight maintenance. Start with activities you enjoy and can sustain long-term. The goal is at least 150 minutes of moderate-intensity exercise per week, but even small increases in daily movement make a difference. Strength training twice per week helps preserve muscle mass during weight loss, which keeps your metabolism higher.

Lifestyle

For some people, medication may be appropriate as part of a comprehensive treatment plan.

For some people, medication may be appropriate as part of a comprehensive treatment plan. FDA-approved weight loss medications like orlistat, liraglutide, or newer options like semaglutide can help when combined with lifestyle changes. These medications work in different ways, such as reducing fat absorption or affecting appetite-regulating hormones. Bariatric surgery becomes an option for people with severe obesity (BMI over 40) or those with BMI over 35 who have related health conditions.

SurgicalMedicationLifestyle

Behavioral support significantly improves success rates.

Behavioral support significantly improves success rates. This might include working with a registered dietitian, joining a structured weight loss program, or participating in counseling to address emotional eating patterns. Many people benefit from tracking their food intake, setting specific goals, and having regular check-ins with healthcare providers. The key is finding an approach that fits your lifestyle and preferences, making it more likely you'll stick with it long-term.

TherapyLifestyle

Living With Overweight and Obesity

Managing your weight long-term requires developing a sustainable relationship with food and exercise that you can maintain for life. This means moving away from the diet mentality of temporary restrictions toward permanent lifestyle changes. Focus on progress rather than perfection, celebrating small victories along the way. Many people find it helpful to work with healthcare providers, dietitians, or support groups to stay motivated and accountable.

Practical daily strategies can make a big difference in your success.Practical daily strategies can make a big difference in your success. Plan your meals and snacks ahead of time when possible, keep healthy options readily available, and create an environment that supports your goals. This might mean clearing processed snacks from your kitchen, finding workout clothes you feel good in, or scheduling regular physical activity like you would any other important appointment.
Don't underestimate the emotional aspects of weight management.Don't underestimate the emotional aspects of weight management. Many people struggle with feelings of shame, frustration, or discouragement, especially if they've tried to lose weight before. Remember that setbacks are normal and don't mean you've failed. Focus on developing healthy coping strategies for stress and emotions that don't involve food. Consider working with a counselor if emotional eating is a significant challenge for you. Building a strong support system of family, friends, or others working toward similar goals can provide encouragement and accountability when motivation wavers.

Latest Medical Developments

Latest medical developments are being researched.

Frequently Asked Questions

Is it possible to be overweight but still healthy?
Some people with higher BMIs can have normal blood pressure, blood sugar, and cholesterol levels, but carrying excess weight still increases long-term health risks. Even metabolically healthy obesity tends to progress to health problems over time.
How much weight do I need to lose to see health benefits?
Even losing 5-10% of your current weight can produce significant health improvements. For someone weighing 200 pounds, that's just 10-20 pounds, which can improve blood pressure, blood sugar, and reduce strain on joints.
Why do I regain weight after losing it?
Your body has biological mechanisms that defend against weight loss, including increased hunger hormones and decreased metabolism. Successful long-term weight management requires ongoing attention to diet and exercise habits, not just temporary changes.
Are weight loss medications safe for long-term use?
FDA-approved weight loss medications are generally safe when used under medical supervision. Like all medications, they have potential side effects, so the benefits and risks should be carefully weighed with your healthcare provider.
Should I avoid carbohydrates completely to lose weight?
Eliminating entire food groups isn't necessary or sustainable for most people. Focus on choosing complex carbohydrates like whole grains, fruits, and vegetables while limiting refined sugars and processed foods.
How much exercise do I need to lose weight?
While diet plays a larger role in weight loss, exercise is crucial for maintaining weight loss. Aim for at least 150 minutes of moderate activity per week, plus strength training twice weekly.
Can certain medical conditions make weight loss impossible?
Some conditions like hypothyroidism or PCOS can make weight loss more challenging, but it's rarely impossible. Working with healthcare providers to manage underlying conditions can improve your success.
Is bariatric surgery a good option for me?
Bariatric surgery is typically recommended for people with BMI over 40, or over 35 with related health conditions, who haven't succeeded with other approaches. It requires lifelong dietary changes and medical follow-up.
How can I overcome emotional eating patterns?
Identifying triggers for emotional eating, developing alternative coping strategies, and sometimes working with a counselor can help. Keeping a food and mood diary can reveal patterns you might not notice otherwise.
What's the difference between hunger and cravings?
True hunger develops gradually and can be satisfied with various foods. Cravings are often sudden, specific to certain foods, and may be triggered by emotions, stress, or environmental cues rather than physical need for fuel.

Update History

Mar 9, 2026v1.0.0

  • Published page overview and treatments by DiseaseDirectory
Stay Informed

Sign up for our weekly newsletter

Get the latest health information, research breakthroughs, and patient stories delivered directly to your inbox.

Medical Disclaimer

This information is for educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.