Prickly pear trees and the brown seaweed, commonly known as Peacocks tail, are a common sight in the Mediterranean. [Stephanie Ghio] It would seem that Juan Ponce de Leon’s trip to the New World in search of the fountain of youth may have been even more in vain, given that it may have been right in his “backyard.” Evidence from a new study by investigators at the University of Malta and the Centre National de la Recherche Scientifique (CNRS/University of Bordeaux) shows that chemicals in ubiquitous Mediterranean plants could hold the key to delaying age-related diseases.