What causes slow metabolism in the body

Slow metabolism in the body may be related to genetic factors, aging, decreased muscle mass, hypothyroidism, long-term dieting, and other factors.

1. Genetic factors

Some populations have lower than average basal metabolic rates due to the influence of congenital genes. This type of situation is usually accompanied by a family history, manifested as the tendency for weight gain even with controlled diet and increased exercise. Genetic testing can assist in judgment, but it needs to be combined with clinical evaluation. Daily recommendations include maintaining a regular schedule and moderate exercise to avoid excessive reliance on extreme weight loss methods.

2. Aging

After the age of 30, muscle tissue in the human body is lost year by year, and the basal metabolic rate decreases every decade. This physiological decline is related to changes in hormone levels, especially in women after menopause. Maintaining metabolism requires attention to protein intake and resistance training. Foods rich in vitamin D, such as broccoli, can help delay muscle loss.

3. Decreased muscle mass

Muscles are the main tissues that consume energy, and long-term lack of exercise or insufficient protein intake can lead to muscle loss. This type of problem is common among sedentary people, manifested as easy fatigue and low body temperature. It is recommended to engage in strength training every week and supplement with high-quality proteins such as whey protein, but it is important to take gradual steps to avoid sports injuries.

4. Hypothyroidism

Thyroid hormones directly regulate metabolic rate, and hypothyroidism patients are commonly afraid of cold, constipated, and weight gain. Autoimmune diseases such as Hashimoto's thyroiditis are common causes and need to be diagnosed through thyroid function tests. Levothyroxine sodium is the main therapeutic drug, but the dosage must be strictly adjusted according to medical advice, while avoiding excessive use of cruciferous vegetables that may affect the efficacy.

5. Long term dieting

Continuous insufficient calorie intake can activate protective mechanisms in the body, reducing metabolic rate to preserve energy. Extreme dieting may lead to endocrine disorders such as hypothalamic amenorrhea. Restoring diet should gradually increase calories, with priority given to compound carbohydrates such as brown rice, and supplemented with vitamin B to help repair metabolic function. Improving metabolism requires comprehensive lifestyle adjustments to ensure a daily water intake of over 1500 milliliters and a sleep duration of at least 7 hours. Add natural metabolic promoting ingredients such as chili peppers and green tea to the diet, but caution should be exercised for individuals with gastrointestinal sensitivity. Regular high-intensity interval training can enhance the effect of excessive oxygen consumption after exercise. If accompanied by unexplained increase or persistent weakness, it is recommended to seek medical attention from the endocrinology department to investigate pathological factors. Long term use of drugs such as levothyroxine sodium requires regular monitoring of thyroid function to avoid drug-induced hyperthyroidism.