ur only source is pregnant women. why was it only conducted on pregnant women? the scientist had a fetish
"The increase of adrenalin caused by salt restriction has many harmful effects, including insomnia. Many old people have noticed that a low sodium diet disturbs their sleep, and that eating their usual amount of salt restores their ability to sleep. The activity of the sympathetic nervous system increases with aging, so salt restriction is exacerbating one of the basic problems of aging. Chronically increased activity of the sympathetic (adrenergic) nervous system contributes to capillary leakage, insulin resistance (with increased free fatty acids in the blood), and degenerative changes in the brain (Griffith and Sutin, 1996).
The flexibility of blood vessels (compliance) is decreased by a low-salt diet, and vascular stiffness caused by over-activity of the sympathetic nervous system is considered to be an important factor in hypertension, especially with aging."