Difficulty falling asleep can be directly related to anxiety. During stressful times -- such as the loss of a loved one, a change in job status or a serious illness -- the numbers of those who suffer from sleep deficiency can be even greater. Ironically, this is the time when a good night's sleep is even more important to facilitate recovery and healing. Yet, no matter how tired the person may be, their mind will not let them relax. 1001 thoughts, fears, and concerns will nag away at them, robbing them of precious hours of sleep. Sometimes anxiety symptoms don't show up until our 20s or 30s, and they are often linked to specific life circumstances. Identifying and treating the root causes of the anxiety may be the only way to rid oneself of the insomnia that has followed.