HS is an abbreviate of Heart & Small Intestine System.
HS is the house of Educated Mind, Educated Mind is located in Heart of HS.
HS is the king of your body, it controls your perception & consciousness.
HS dominates joy/laugh, over joy/laugh will hurt HS.
HS controls blood flows and blood circulation of your body.
HS is connected with face and tongue, facial and tongue conditions will show HS condition. If your face is pale, it shows your HS fire energy is low; if your face is too much red, it shows your HS fire toxin is high; if you feel your tongue stops moving in a sudden and it happens from time to time, it shows the possible heart attack will happen.
HS controls sleep, your sound sleep needs strong HS to support.
HS fire energy will support SS to digest foods & drinks.