10 Symptoms of Stress

6. Insomnia

If a person experiences stress over an extended period, it can begin to affect their sleep. People with high levels of work-related stress tend to be sleepier, but have more difficulty falling asleep. Many studies support the links between stress and insomnia, but doctors have yet to discover the internal cause. Some doctors suggest that stressful events cause anxiety, which then leads to insomnia. Others state that stress is often the result of lifestyle choices such as a tendency to work too much and that these individuals are more likely to have insomnia because of these tendencies.