The correct answer to this open question is the following.
An older woman comes to the mental health clinic and reports, "I've not been feeling right and haven't been able to sleep or eat since my husband died 8 months ago." The nurse determines that the client is experiencing grief associated with the loss of the husband. What supports this conclusion is the fact that she found that the lack of sleep is due to the presence of symptoms of depression.
Medical doctors know that Depression is a serious condition that affects so many people and can cause a loss of sleep. Only in America, depression affects 20 million people. In this case, the older woman is suffering depression by the loss of her husband. It is a chronic condition because that happened 8 months ago and she must be attended immediately to help her because a lack of sleep can cause many other conditions.