Well, that all depends on their living situation. If they’re in the wild, they’ll usually make it around 7 years. But if they’re properly cared for in captivity, then you can expect 15 years. As long as they are offered excellent husbandry. Good husbandry will prevent common diseases like metabolic bone disease, mouth rot, and yellow fungus. Here are some common routines you should consider so you can provide your bearded dragon with a long and happy life.