Fatigue Cause No. 1: Not Enough Sleep: Lack of sleep causes fatigue, and can have a negative impact on your overall health and well-being.
Aim for seven to eight hours of sleep every night. Go to bed at the same time every night, and wake up at the same time each morning to keep yourself on schedule. Make sure your mattress is comfortable, the room is sufficiently dark and cool, and your cell phone and television is off. If you are still unable to sleep after making changes to your sleep environment, consult a doctor to rule out a sleep disorder.
Fatigue Cause No. 2: Sleep Apnea: Sleep apnea is a serious sleep disorder where sufferers briefly stop breathing for short periods during sleep. Most people are not aware this is happening, but it can cause loud snoring, and daytime fatigue.