The therapy involving Jacuzzi (ג׳קוזי) is used as an assistant treatment to the regular medications that a person suffering from high blood pressure is indulging in.
But the patient is always advised to consult their doctor before trying this therapy to lower their blood pressure. This is because, the therapy initially increases the body’ blood pressure due to increased temperature of the body. Therefore people with high blood pressure should first consult their doctors before using this kind of water therapy.
The reason because of which the blood vessels dilate when brought in contact with hot water is very simple. When your body comes in touch with hot water in your spa pool (בריכות ספא), there is reflex that goes to your brain with information that your body temperature has risen from the normal levels. Thus the vessels near the skin, which are in direct touch with the water relaxes and dissipates all heat outside the body. Thus all these developments in the body dilate the vessels.
It helps the blood in clearing itself from all the waste accumulated in it. With the day in progress, the food you eat and the physical activities that you perform, a lot of waste and harmful chemical substances get deposited in the body. With hot tub (ג׳קוזי) treatment and the process of vasodilation, the blood reaches fast to the body parts and thus removes the waste products. This could again help lower your blood pressure.