Which factors can contribute to weight loss apart from dieting?

Depression and hyperthyroidism are indeed factors that can lead to weight loss beyond the scope of dieting. In cases of depression, individuals may experience a decrease in appetite, reduced interest in food, and overall energy levels, which can result in unintended weight loss. Additionally, hyperthyroidism, a condition characterized by an overactive thyroid gland, increases the metabolic rate significantly. This heightened metabolism can lead to weight loss even when a person may not be consciously trying to lose weight or is consuming enough calories.

The other factors listed do not inherently contribute to weight loss in the same way. Eating more proteins can support weight management but does not guarantee weight loss by itself, as it depends on the overall caloric intake and balance of nutrients. Strict exercising can indeed promote weight loss, but the extent of weight loss may vary based on dietary habits and individual metabolic rates. Reducing sleep is often linked to weight gain or other health issues rather than promoting weight loss, as adequate sleep is critical for metabolic health, hormonal balance, and overall well-being.