What makes some fat stubborn is the combination of poor blood flow, increased alpha receptors activity and more insulin sensitivity. (personaltraining4u.net)
By tweaking how beta - receptors and alpha - receptors function (activating beta - receptors / blocking alpha receptors) through simple supplementation, you can significantly maximize your fat - loss efforts. (mnprime.com)
We have different kinds of receptors in our fat tissues, essentially called alpha receptors and beta receptors. (thebettyrocker.com)