Salt has been known as a sneak ingredient that potentially can affect your health. A new study has shown that people who suffer from nocturia often consume too much salt. While this research suggests that eating too much salt before bed can affect your sleep, there is more to the study than what meets the eye.
MRIs of 48 individuals, 28 with restless leg syndrome and 20 without, found that increased glutamate levels are congruent with sleepless nights. Also, glutamate results in hyperarousal (day or night), which may be why individuals suffering with restless leg syndrome may not sleep but also not feel tired during the day.