Losing weight after 40 can feel increasingly difficult for many individuals, as explained by fitness expert Sumit Dubey. One primary reason is a slower metabolism, which means the body requires fewer calories to function. As people age, they often lose muscle mass, which further decreases calorie burning since muscle tissue is more metabolically active than fat. Hormonal changes also play a significant role; for women, a decline in estrogen during menopause can lead to increased fat accumulation around the abdomen, while men experience a gradual decrease in testosterone, affecting muscle retention. Additionally, many individuals see a reduction in physical activity as they age, which can lead to a more sedentary lifestyle and less energy expenditure. Stress levels typically rise during this life stage due to various responsibilities, which can lead to increased cortisol production, negatively impacting sleep and weight management. Lastly, recovery from workouts takes longer, with muscle repair processes slowing down, making it harder to maintain an active lifestyle. Despite these challenges, Dubey emphasizes that weight loss is still achievable through strength training, a higher protein diet, and prioritizing sleep.