Nobody likes a coworker who looks like he stayed up all night. Even if your behavior signifies attention and activity, a tired appearance will surely give a negative impression. With your appearance communicating fatigue, your boss might think that work is not as important to you as other activities. If that happens then start waving goodbyes to your promotion.

If you want not to fall prey to bad habits that will cause you to look tired in the workplace, then follow these useful tips religiously and do not deviate:

Sleep: For adults, the healthy sleep duration is six to eight hours. If you sleep too little or oversleep, then tiredness takes over. Make sure your schedule lets you sleep for at least six hours every day.
Wash: Give your face a good wash with an exfoliant. All that scrubbing and rubbing will rid your face of the tiredness to a great degree.
Water: Start drinking water as soon as you wake up. Keep a water bottle with yourself and drink throughout the day. Keeping your body hydrated like that will keep your skin glowing and not give you a dried out look.
Food: Starting from your breakfast, make sure you eat healthy. Try incorporating a lot of fruits into your diet. Consult your doctor and start taking multivitamins to give your body the nutrients you are not able to provide through your routine diet. Healthy skin, hair, and nails are essential for a good appearance.
Exercise: Exercise is not a habit rather a way to live. Daily exercise will keep you mentally active and physically fit both of which will benefit you hugely in the long run.
Dress: Your dress communicates a major part of your attitude. Wearing well pressed clothes which are stainless due to proper washing sends an impression of freshness and activeness. The color of your clothes also plays an important role. Instead of trying to make a wild fashion statement and raising alarms in the workplace, focus on simplicity and cleanliness.

Follow the abovementioned steps and excel not only in the workplace but in your everyday activities, giving all of them your hundred percent.