When you soak in a spa hot tub at 37–40°C, your body undergoes a series of physiological responses: Warmth promotes vasodilation (slightly lowers blood pressure) Warm water has a natural vasodilatory effect, usually causing a slight decrease in blood pressure.

In fact, it's generally not recommended to leave the water in the spa hot tub if it won't be used for an extended period in winter. The reason is clear: when the temperature drops below freezing, pipes can burst, joints can break, filters can rupture, and even the outer shell of the hot tub can crack.

Many people believe that steam shower bathrooms are only suitable for hotels, gyms, or luxury homes. However, with the miniaturization of equipment and improvements in installation technology, ordinary households can absolutely install them.

Excessive chlorine in swim spa tubs can easily irritate the mucous membranes of the eyes, causing redness, swelling, tearing, or a burning sensation. Prolonged exposure may damage the cornea, increasing eye discomfort and the risk of infection.

The buoyancy of water reduces pressure on joints and muscles, especially in the shoulders, neck, and lower back. Muscle tension is a common physiological manifestation of anxiety. The buoyancy of a spa hot tub relaxes muscles, reducing body pressure and thus lowering psychological anxiety.

SPA is more like a comprehensive system for relaxation of body and mind, and a spa jacuzzi tub is one of its hardware components. In other words: a spa jacuzzi tub is the equipment, while a SPA is the experience.