16-ThinkstockPhotos-464503202.jpg

Thinkstock

It’s not normal to feel like you need to sleep for hours during the day every day. A sluggish thyroid can do that to you. On the other hand, an overactive gland can make you stay awake when you shouldn’t be by making you anxious and increasing your pulse. The condition overstimulates the nervous system, making it hard to fall asleep.