all the time, it might mean that your body is trying to tell you something. And while exhaustion doesn’t necessarily point to an underlying health condition, it is worth checking in with your doctor if fatigue is getting in the way of living life the way you’d like to.Here, experts break down a few potential causes for your tiredness as well as how to combat fatigue.A is probably the most obvious (and most common) reason for why we feel exhausted. , it’s recommended that adults sleep between seven and nine hours a night.