Lack of sleep is linked to a number of unfavorable health consequences including heart disease, type 2 diabetes, and depression. Some psychiatric conditions can cause sleep problems, and sleep disturbances can also exacerbate the symptoms of many mental conditions including depression, anxiety, and bipolar disorder
Lack of sleep may increase risk factors for anxiety and depression because without sleep, your mind and body are tired. You won't have the energy to do things as well as you would with a healthy amount of sleep, and you would be in a bad mood since you are so tired. You could also always be put on edge because of it, the anxiety of all the work you may have to do and it could stress you out, causing you to be even more tired and anxious. Therefore, the lack of sleep could increase the risk of having depression and anxiety because without the right amount of sleep the day is stressful and too much for the tired mind and body.
