Are you constantly yawning? Do you need toothpicks to keep your eyelids open? Whether you are at work, trying to perform at a high level, or driving a vehicle, being tired is physically similar to being drunk on alcohol. It can open the door to making costly mistakes and oversights. If you feel tired, it is because your body is telling you that it needs rest.
If you can, you will be amazed how even a quick 15-minute catnap can recharge your batteries, making you feel ready to go.