What Causes Insomnia?
Secondary Insomnia
Secondary insomnia is the symptom or side effect of another problem. This type of insomnia often is a symptom of an emotional, neurological, or other medical or sleep disorder.
Emotional disorders that can cause insomnia include depression, anxiety, and posttraumatic stress disorder.
wedding dresses Alzheimer's disease and Parkinson's disease are good examples of common neurological disorders that can cause insomnia.

A number of other conditions also can cause insomnia, such as:
Conditions that cause chronic pain, such as arthritis and headache disorders
Conditions that make it hard to breathe, such as asthma and heart failure
An overactive thyroid
Gastrointestinal disorders, such as heartburn
Stroke
Sleep disorders, such as restless legs syndrome and sleep-related breathing problems
Menopause and hot flashes
Secondary insomnia also may be a side effect of certain medicines.
wedding dresses For example, certain asthma medicines, such as theophylline, and some allergy and cold medicines can cause insomnia. Beta blockers also may cause the condition. These medicines are used to treat heart conditions.
Commonly used substances also may cause insomnia. Examples include caffeine and other stimulants, tobacco or other nicotine products, and alcohol or other sedatives.
Primary insomnia isn't a symptom or side effect of another medical condition. This type of insomnia usually occurs for periods of at least 1 month.
A number of life changes can trigger primary insomnia. It may be due to major or long-lasting stress or emotional upset.
bridesmaid dresses plus size These factors such as travel or other factors that disrupt your sleep routine may also trigger primary insomnia.
Even if these issues are resolved, the insomnia may not go away. Trouble sleeping may persist because of habits formed to deal with the lack of sleep.
wedding gowns These habits may include taking naps, worrying about sleep, and going to bed early.
Researchers continue to try to find out whether some people are born with a greater chance of having primary insomnia.