In Israeli, the name Jehoshaphat means-the lord is judge.The name Jehoshaphat originated as an Israeli name. The name Jehoshaphat is most often used as a boy name or male name. Israeli Name Meaning-the lord is judge. Origin-Israel. Global Star Registery-Name a star after someone special!
Depending on breed, management and environment, the modern domestic horse has a life expectancy of 25 to 30 years. Uncommonly, a few animals live into their 40s and, occasionally, beyond. The oldest verifiable record was Old Billy, a 19th-century horse that lived to the age of 62.
If a horse is completely healthy yes, it might live to be 40 years old, but that is a stretch. Biological factors, riding accidents, illnesses/diseases, etc. make it very hard for a horse to live for that many years. The average lifespan is 20-30 years old, depending as you said on the horse's health. Though someone takes very good care of their horse, there are still uncontrollable factors that could contribute to the horse's demise at an earlier age.