Mirabegron is a so called beta 3 - adrenoceptor agonist, which activates the corresponding receptors in the muscle cells of the urinary bladder causing the smooth muscles to also relax. (sciencedaily.com)
You see over time many people bombard their bodies with too many calories which increases the level of Alpha Adrenoceptors in their system. (venusfactordietsystem.com)
But the good news is that increasing your fat burning Beta Adrenoceptor level can be done and its not that hard. (venusfactordietsystem.com)