My boy, Brown starts sweating really easy when we are working and lungeing. I took him up to the big arena today and turned him out with a friends horse. They had a blast but he was completely lathered from head to toe and dripping, the other horse, an Arab gelding 11 years old barely broke a sweat. Brown gets exercised for at least 45 min. 4-6 days a week and he always gets super sweaty. He is about 8-9 years old and a Thoroughbred. I just wondered because I have gotten comments on him getting all lathered up before while thier horse barely sweated ever. What to you guys think? Anyone elses horse sweat easy? Is it something I should worry about? Thanks.