How many ways can you think of to stress out a horse? Trailering, bathing, clipping, vet visits, hoof trims, bridling, saddling — the possibilities are endless. Unfortunately, calming options are not. Thanks to research conducted at the University of Arizona (UA), horsemen and horsewomen have a new tool to help manage equine stress, and it’s as simple as a sniff. A sniff of lavender, that is.