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Can low potassium cause dementia?

Low Potassium and Cognitive Decline Memory loss and confusion are common side effects In people who are deficient in potassium. For people who have high blood pressure and are on diuretic medications that cause potassium losses, decreased memory function is a key symptom that often causes problems in daily living.

healthyeating.sfgate.com - Potassium & Memory - Healthy Eating | SF Gate

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You may know that as an electrolyte, potassium promotes heart and muscle activity. But the mineral also supports the brain's memory function. Because potassium plays a role in the basic function of brain neurons, supplementation may be recommended as part of a therapeutic approach to treating dementia. Additionally, potassium boosts memory and learning in healthy individuals.

Decreasing Oxidative Damage

Oxidative damage occurs when harmful substances known as free radicals are present in your body and brain. A 2013 study published in the "Journal of Neuroscience Letters" researched potassium supplementation and levels of free radicals in the brain. After 20 days of supplementation with potassium, the levels of harmful free radicals decreased significantly, reducing the amount of oxidative damage that occurred in the test subjects. Because oxidative damage leads to decreased brain function, potassium counteracts this effect and prevents brain damage.

Low Potassium and Cognitive Decline

Memory loss and confusion are common side effects In people who are deficient in potassium. For people who have high blood pressure and are on diuretic medications that cause potassium losses, decreased memory function is a key symptom that often causes problems in daily living. In these cases, potassium supplementation plays an important role in preventing cognitive decline and may be recommended for anyone taking potassium-losing diuretic medications. Also, if you don't get adequate potassium through your diet, you may hurt your ability to learn and retain memories.

Increased Learning Ability

Potassium supplementation increases your capacity to learn, especially if you have lower-than-normal levels. To transmit information throughout your brain, your body relies on functioning potassium channels. The neuron cells in your brain rely on electrical signals generated by sodium and potassium channels in each cell. When brain cells receive a signal, channels open in the membrane of the cell, releasing sodium and potassium, both positively charged ions. The introduction of these positive ions produces an electrical signal that travels down the neuron and signals other brain cells. In cases in which these channels do not work properly or do not have adequate potassium to open and close, your ability to remember information becomes compromised. While most people can boost memory by taking in adequate potassium through food or supplements, some extreme cases may require prescription medications.

Decreasing Memory Deficits

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What organ does potassium affect the most?

Your Heart and Other Muscles Because it's a muscle, your heart needs potassium. It helps cells send the right electrical signals so that the heart pumps correctly. Having too much potassium in the body can alter the heart's rhythm.

webmd.com - What Does Potassium Do in Your Body? - WebMD

Potassium is a mineral that many parts of your body, including your brain, nerves, heart, and muscles, need to work properly. You might be surprised at all of the things it does for you. It’s an electrolyte, like sodium, calcium, and other minerals. They manage how much water you have in your body and help maintain your body’s electrical system. Potassium also:

Moves nutrients into your cells and takes waste out

Counters the effects of sodium, which can help your blood pressure

Your kidneys control how much potassium is in your body by filtering any excess out of your blood. Balance is key. If levels of potassium are either too low or too high, things can get off-kilter. Most people fall short of the minimum recommended amount of potassium per day. And while taking in too much or too little potassium isn’t a problem for healthy people, it can be if you have chronic kidney disease or take certain types of medicines. That’s one reason why you should check with a doctor before you take potassium supplements.

Here are some of the parts of your body potassium helps.

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