According to BBC, a team at Nagasaki University even followed a group of patients who were told to cut back on salt and determined that their nighttime bathroom trips went from twice to only once a night.
If you're curious about how much is too much salt, the American Heart Association suggests no more than 1,500 mg a day for adults, which is less than 3/4 of a teaspoon.
RELATED: Unusual uses for salt
Unusual Uses for Salt
Unusual Uses for Salt
BEACH-WAVES SPRAY FOR HAIR:
To create perfectly textured waves, dissolve a teaspoon of sea salt into an 8-oz. spray bottle of warm water. Add 1/2 teaspoon of liquid coconut oil and a dab of hair gel. Then just shake and mist.
Mix a cup of sea salt with a few drops of almond, coconut, or another essential oil and pour into running water. Adding salt to a bath permits less water to be absorbed by the body, reducing skin’s ‘pruning’ effect on fingers and toes.
Work crushed sea salt into the scalp before wetting hair to loosen flakes and better enable scalp treatments to penetrate.
To reduce oiliness, fill a small spray bottle with tepid water, add 1 teaspoon salt, and mist on your face, making sure to avoid eyes. Blot dry.
After you take a shower or bath, and while your skin is still wet, sprinkle salt onto your hands and rub it gently on arms and legs. A salt massage will exfoliate dead skin cells and improve circulation.
To open up pores before exfoliating skin, bring 1/3 cup sea salt to a boil in a small pan of water. Transfer to a bowl, take a seat, and hold your face over the steam for 10 minutes.
Mix 1 teaspoon fine-grain salt and 1 teaspoon olive oil in a small bowl. Gently massage the mixture into your face and throat. Rinse off by washing skin as usual.
A classic natural beauty recipe, start by pulverizing sea salt using a mortar and pestle. Combine 1 part crushed salt and 2 parts baking soda. Dip a dampened toothbrush into the mixture and brush your teeth.
Rinse with a solution of 1/2 teaspoon salt and 1/2 teaspoon baking soda mixed into a 4-ounce glass of water.
Mix one teaspoon of salt into a pint of hot water. Lie comfortably on your back and apply pads soaked in the solution.
An Epsom- or sea-salt foot soak is just what the doctor ordered for overworked athletes — or even just a long night out in heels.
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Be careful when choosing packaged foods. Pick the "no salt added" canned veggies and try not to eat too much soy sauce, bottled salad dressings and ketchup because they're high in sodium.
To balance out your salt intake, try eating foods with potassium. According to Reader's Digest, it helps counteract the effects of sodium.
Cutting out salt isn't fun -- but getting a full, good night's sleep seems like a fair trade.