壮火 meaning in English

excessive fire
sthenic fire
the vigorous fire
vigorous fire

The diseases such as body infirmity , decrease of basic metabolic function , low production of heat are all caused by insufficiency of kidney - yang from chinese traditional viewpoint . if the application on the life point is strengthened , it will be good for kidney
远红外的湿热效应本身就有温补肾阳的作用，如果在命门穴位加强应用远红外产品远红外腰带远红外寝具等，可以壮火暖肾摄气归元，对畏寒症有重要作用。