Robuta

https://www.science20.com/news_articles/blocking_pain_receptors_extends_lifespan_boosts_metabolism_in_mice-136978 Blocking Pain Receptors Extends Lifespan, Boosts Metabolism In Mice | Science 2.0 Blocking a pain receptor in mice not only extends their lifespan, it also gives them a more youthful metabolism, including an improved insulin response that... pain receptorsextends lifespan https://www.rti.org/publication/characterization-imidazoline-12-receptors-novel-target-pain-management Characterization of imidazoline 12 receptors as a novel target for pain management | RTI