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I disagree.
Like the health triangles pictured here? Please check these out and try again.
https://www.google.com/search?tbm=isch&source=hp&biw=1440&bih=654&ei=sJbmXM71LtGgswWOjKSwCw&q=health+triangle&oq=health&gs_l=img.1.0.35i39j0l9.1985.3050..5571...0.0..0.79.460.6......1....1..gws-wiz-img.....0.jTxNm1OFQ68#imgrc=C7tuww1MifXgwM: