Post-workout fatigue is more than just a physical condition.đȘđ»đ€€ It is the result of muscle and heart work, as well as the body's psychological response to physical exertion. đ€đ€ After intense exercise, muscles become fatigued due to the accumulation of lactic acid and other metabolic products.đđ»ââïžđ This leads to a feeling of heaviness and fatigue in the muscles.âĄđȘđ»