📝 Detailed Answer
From the perspective of Traditional Korean Medicine, herbal medicine focuses on improving the underlying constitution. For example, in cases of Spleen deficiency (脾虛) with poor digestion and bloating, herbs that supplement the Spleen (補脾) may be used; for those with excessive Phlegm-Dampness (痰飮), herbs that resolve Dampness are applied. By strengthening the metabolic foundation, energy efficiency can improve, potentially leading to weight changes even without increased activity. However, without exercise, maintaining muscle mass becomes difficult, which can lower basal metabolic rate and increase the risk of rebound weight gain. Additionally, herbal medicine alone has limited effects on cardiorespiratory function and blood circulation, and conditions involving Blood Stasis (瘀血) or Qi Stagnation (氣滯) require physical movement for resolution. Ultimately, the outcome depends on the individual. For those with time constraints, starting with herbal medicine to regulate the body while incorporating even gentle stretching is recommended. A constitutional diagnosis at a clinic can help determine the most suitable approach.