Saline is used for two purposes. One it is sometimes used to wash procedure areas. Second it is used to keep a patient hydrated.
In terms of saline being used for hydration, because water diffuses through permeable membranes to areas of higher to lower concentrations they water would naturally do that in the body. This is super dangerous, if a lot of water enters the body without salt to keep the concentration balance in check. A person may overfill cells with water, and can cause dangerous organ swelling and degradation. That is the purpose of saline.
An eating disorder research website or a Mental health research website such as National Institute Of Mental Health. It can help you keep up to date because websites are most times updated with new information and easy to access now a days.
Get away from or deal with her stressful problem and talk to her doctor about her sleeping issues. let me know if this helps.
