Tribulus terrestris is the #1 selling testosterone booster, and the best example of a supplement that increases libido, but has no effect on testosterone.
Ab belts may cause muscle contractions if used properly. But the belt alone cannot produce six-pack abs. The real challenge to ab definition is the layer of fat that lies right under the skin, hiding muscle tone.
Black Belts Should Create Balanced Project Portfolios. The Six Sigma project matrix helps create a project portfolio that has both substance and merit. By partitioning projects into the four quadrants of the matrix, Black Belts will select tasks that please customers and improve the firm's bottom line.