HWI stands for Hot Water Immersion. In this therapy, we use a big tub filled with hot water and the patient is made to sit in that tub. When the patient's body is subjected to being covered up in hot water, within a few minutes, the body starts producing desirable chemicals. The sodium excretion increases five times, potassium excretion increases two times. Also, urine volume increases three times. Thus, the swelling and excessive weight due to accumulated waste in the body gets reduced. The body can flush out excessive waste loaded with toxins, providing relief to the patient. Along with dialysis, HWI Therapy relaxes the body, cures heart disease, hypertension, and diabetes, and improves overall health.