Rangi nyekundu inaweza kuongeza kiwango cha moyo na shinikizo la damu wakati bluu inaweza kutuliza na kupunguza shinikizo la damu.
© Chloroformzt Official - Est 2009
10 Ukweli Wa Kuvutia About The psychology and effects of color on human behavior

10 Ukweli Wa Kuvutia About The psychology and effects of color on human behavior