Physical illnesses refer to medical conditions that affect the body and its normal functioning. These can include a wide range of issues, such as infections, chronic diseases, and injuries. Common examples are diabetes, asthma, and heart disease. Physical illnesses can result from various factors, including genetics, lifestyle choices, and environmental influences. Symptoms of physical illnesses can vary greatly, depending on the specific condition. They may include pain, fatigue, fever, or difficulty in performing daily activities. Diagnosis often involves medical examinations, tests, and consultations with healthcare professionals. Treatment options may include medication, therapy, or lifestyle changes to help manage the illness.