- Hormonal changes
One of the main causes of weight gain in women after 40 is hormonal changes, particularly related to menopause. During perimenopause and menopause, estrogen levels fluctuate and eventually decrease, which can affect metabolism and the way the body distributes fat. This hormonal shift often results in increased abdominal fat, which is linked to a higher risk of cardiovascular disease and insulin resistance.
Impact on metabolism
Decreased metabolic rate: As estrogen levels drop, women often experience a decrease in their metabolic rate, meaning the body burns fewer calories at rest. This can contribute to weight gain unless dietary habits are adjusted accordingly.
Increased appetite: Hormonal changes can also lead to increased appetite and changes in satiety hormones, making it more difficult to manage food intake.
- Loss of muscle mass
Ageing is associated with sarcopenia, the gradual loss of muscle mass and strength. Muscle tissue burns more calories than fat tissue, so a decrease in muscle mass lowers the body’s resting metabolic rate, making it easier to gain weight.
Strategies to counteract muscle loss
Strength training: Incorporating strength training exercises into your routine can help maintain and build muscle mass, boosting metabolism.
Protein intake: Ensuring adequate protein intake can also support muscle synthesis and repair, crucial for preserving muscle mass.
- Thyroid Function Decline
The thyroid gland regulates metabolism, and its function can decline with age, leading to hypothyroidism. Symptoms of hypothyroidism include fatigue, cold intolerance, and weight gain. Hypothyroidism is more common in women, especially those over the age of 40.