insomia

A 75 year old female complains of insomnia : 

1. What may be  reasons for her insomnia

2. Describe some common sleep  disorders in the elderly

3.Describe some common myths /Attitudes toward Sex and the Older Elderly

4. Describe a diet outline for people over 70  age and explain your rational in  details

Please  use APA format for your assignment  and please cite your  references  .

Thanks