Not only can a lack of sleep potentially harm your personal relationships and your performance at work, it can have serious consequences on your physical health. Levels of cortisol, a stress hormone, are elevated in states of sleep deprivation. Pushing yourself without solid hours of sleep can only make you more stressed. This vicious cycle can lead to health problems brought on by chronic stress, including heart disease. Sleeping poorly can also affect how often you get sick.

Learn how to finally get a good night's sleep with these simple steps: