Appointment Helps World's Largest Health and Wellness NetworkPut Renewed Focus on its Consumer Offering NEW YORK, June 8, 2022 /PRNewswire/ -- As the needs of modern health and wellness brands continue to evolve, Havas Health & You (HH&Y) today announced the network will bring on industry-leading creative veteran David Leonardi as Chief Creative Officer (CCO) of Havas Tonic, its largest consumer-focused health and wellness agency. David will join Havas Tonic on June 6th, working closely with Tonic's Managing Director Corey Cirillo and HH&Y Global CCO Eric Weisberg to rethin...