Achieving weight loss depends on various factors, including diet, sleep, physical activity, and mood. Even with the same plan, some individuals reach their goals quickly, while others experience slow or ineffective weight loss. This article explores the factors that can hinder this process.

Genetics

Genes can influence many aspects of weight management, from metabolism and appetite to the ability to feel full after eating. Rare genetic conditions, such as Prader-Willi syndrome – a chromosomal disorder causing symptoms like increased appetite and a tendency to overeat – can make weight loss goals more difficult.

Specific genes, like FTO and MC4R, impact appetite regulation, energy metabolism, and fat accumulation. Certain variants of these genes may reduce resting energy expenditure and affect hunger and satiety signals, making weight loss harder.

Genes are linked to weight. Photo: Anh Chi

Hormones

According to Very Well Health, hormones operate differently in each individual's body, depending on their physiology. Hormone fluctuations can influence hunger, metabolism, appetite, and body fat distribution. For instance, changes in estrogen levels, common during perimenopause and menopause, are a frequent cause of unwanted weight gain.

Cortisol, ghrelin, insulin, and leptin also impact the weight loss process. Cortisol is linked to stress, ghrelin stimulates hunger, insulin helps control blood sugar, and leptin creates a feeling of fullness.

Metabolism

Metabolism is the process by which the body converts food into energy. A slower metabolic rate – the speed at which calories are burned – as one ages makes weight loss more challenging. Various other factors also influence metabolism, including physical activity levels, muscle mass, and body fat composition. Individuals with a naturally efficient metabolism tend to lose weight more effectively than those with a slower metabolism.

Mental health

Mental well-being can affect weight in several ways. Stress can lead to cravings, cause insomnia, and promote weight gain.

Individuals with depression often find weight loss more difficult than others because they may feel less motivated to exercise or engage in daily activities. Hormonal factors, such as lower serotonin levels, also hinder weight loss for those with mental health challenges, according to Eating Well.

Medical conditions

Weight gain is a side effect of some prescription medications, including certain drugs for psychiatric conditions, diabetes, and epilepsy. Several medical conditions can also make weight loss more challenging, such as Cushing's syndrome, heart failure, hypothyroidism, kidney disease, polycystic ovary syndrome, and sleep apnea.

Anh Chi (Compiled)