Wrap around your waist and belly to increase your body temperature once
and
It serves as a warming role for the whole body.
Because the organs gather in the stomach,
Because blood flow is concentrated.
If you heat up your blood with your waist or belly wrap,
Because warm blood passes through the body,
It naturally increases body temperature.
Unlike tourmaline or electric, it warms up with your body temperature.
Can be used while sleeping without being too hot.