Why Do Some People Lose Weight Faster Than Others Struggle?

Weight gain occurs when an individual consumes more calories than they burn through daily activities and physical exercise. Why do some people lose weight faster than others?

why is harder for some to lose weight-

Although everyone gains weight differently, it is a result of a combination of genetic, hormonal, metabolic, lifestyle, and medical factors.

Some individuals may have a slower metabolism, making it easier for them to gain weight. Others may have a genetic predisposition to weight gain. Hormonal changes, like the ones experienced during menopause, can also affect weight.

Additionally, sedentary lifestyles and unhealthy eating habits can contribute to weight gain, while underlying medical conditions, such as hypothyroidism or insulin resistance, can also play a role. The combination of these factors can make weight gain unique to each individual and difficult to predict.

Excess weight can significantly impact an individual’s quality of life, affecting their mobility, energy levels, and self-esteem. Losing weight is a complex process; some people lose weight fast, and others take a long time. Also read: How To Lose weight In Just Two And Half Weeks

Why do some people lose weight really fast than others struggle? There are many reasons why people lose weight differently, including genetics, hormonal imbalance, physical activities an individual engages in, sleeping pattern, stress management, and medical conditions. Below is a detailed review of why some people lose weight fast, and others take longer. 

5 Common Reasons Why Some People Lose Weight Faster Than Others

  • 1. Genetics

Genetics plays a significant role in why some people lose weight quickly, and others struggle to shed even a few pounds. Studies have shown that the rate of weight loss can be influenced by genetic factors such as the body’s metabolism, the distribution of fat in the body, and the efficiency of insulin in controlling blood sugar levels.

Metabolism is determined mainly by genetics. People with a high metabolism can lose weight faster, while those with a slow metabolism tend to struggle with weight loss. Fat distribution in the body is also genetically determined and can make weight loss difficult for some people.

Those with an “apple” shape, where most of their fat is stored in the abdominal area, are more prone to health problems associated with obesity, including heart disease and type 2 diabetes. Insulin sensitivity is another genetic factor that affects weight loss.

People who are insulin resistant, meaning their body does not respond well to insulin, tend to have a more challenging time losing weight. This can lead to high glucose levels in the bloodstream, leading to excess fat storage in the body.

In addition to these two factors, certain genetic variations may also influence weight loss. For example, the FTO gene has been linked to increased appetite and a higher risk of obesity. Genetic mutations can also affect how the body processes and metabolizes food, leading to weight gain and difficulties with weight loss.

  • 2. Physical activities

The type, frequency, and intensity of physical activities done by an individual impact weight loss, and these factors can vary significantly between individuals.

People who engage in high-intensity exercises like weightlifting, sprinting, and HIIT tend to experience faster weight loss than those who participate in low-intensity activities like walking and yoga. This is because high-intensity exercises increase the body’s metabolism and lead to greater calorie burn.

The frequency of physical activity also plays a role in weight loss. People who exercise regularly tend to lose weight more quickly than those who are less active. This is because regular exercise helps to maintain a high metabolism, leading to continued calorie burn and weight loss.

Aerobic exercises like running and cycling lead to faster weight loss than strength training exercises like weight lifting and bodyweight exercises. Aerobic exercises increase the heart rate and lead to a higher calorie burn.

  • 3. Hormonal imbalance

Hormonal imbalances play a crucial role in weight gain and weight loss. The hormones that affect weight include insulin, cortisol, thyroid hormones, and leptin. If these hormones are not balanced, they can lead to weight gain and make it difficult to lose weight. 

The insulin hormone is responsible for regulating blood sugar levels. It also affects weight by promoting fat storage and making it difficult to lose weight. Cortisol is a stress hormone that increases with stress and can lead to weight gain, especially in the abdominal area.

Thyroid hormones play a crucial role in metabolism, and when there is an imbalance, it can cause weight gain. Leptin, the hormone responsible for regulating hunger, can become resistant in some individuals, which leads to overeating and weight gain.

On the other hand, some individuals may lose weight rapidly due to hormonal imbalances such as hyperthyroidism, which increases metabolism and causes weight loss. Polycystic ovary syndrome (PCOS), a condition where women have high levels of androgens, can also cause rapid weight loss due to insulin resistance.

It’s important to note that genetics is just one factor that contributes to weight loss. Other factors, such as diet and exercise, also play a significant role. However, understanding the role of genetics can help people better understand why they may struggle with weight loss and what steps they can take to overcome these challenges.

  • 4. Sleeping pattern and stress management

Sleep patterns and stress management can also impact weight loss and weight gain. A good sleeping pattern helps regulate hormones such as cortisol and insulin, which are essential in controlling weight. Also read: How To Slim Down Without Tracking Your Goals?

Adequate sleep helps to regulate cortisol levels, reducing the risk of weight gain. Additionally, lack of sleep can cause insulin resistance, affecting the body’s ability to regulate blood sugar levels and store fat, leading to weight gain.

Stress management also plays a crucial role in weight loss. Chronic stress leads to elevated cortisol levels, causing weight gain. Stress eating, overeating, and binge eating are common side effects of stress, leading to weight gain.

Individuals who prioritize stress management and have a consistent sleep pattern are more likely to lose weight faster. A good sleep pattern and effective stress management can help regulate hormones and metabolism.

  • 5. Medical conditions

Some medical conditions cause rapid weight loss, while others make it difficult to lose weight or cause weight gain. Conditions like hyperthyroidism lead to fast weight loss as the metabolism is increased.

It causes the body to burn more calories. Cancers, such as gastrointestinal and lung cancer, cause rapid weight loss. Polycystic ovary syndrome (PCOS) is a hormonal disorder that can cause weight gain due to insulin resistance.

Obesity and heart disease are also medical conditions related to weight gain, making it difficult to lose weight. These conditions can impact hormone regulation and metabolism, making it harder for the body to control weight.


Losing weight is influenced by many factors. The rate at which an individual loses weight can vary based on genetics, diet, physical activity, hormonal imbalances, sleep patterns, stress levels, and medical conditions. To successfully lose weight, it’s crucial to adopt a balanced diet, maintain a consistent exercise routine, and manage stress and sleep patterns.

Medical Discalimer: The information provided here On Geeks Health website is for general informational purposes only. It is not intended to be 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. If you have or suspect a medical problem, promptly contact your healthcare provider. Reliance on any information in this response is solely at your own risk.
Jennifer Singleton
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