Are You Waking Up at Night? You Could Have High Blood Pressure! Check it Out Now!

A Japanese study has found that individuals who experience nocturia, the need to urinate at night, may have high blood pressure or excess fluid in their body. This highlights the importance of monitoring blood pressure and salt intake for those who regularly wake up to urinate at night.

The Link Between High Salt Intake and Nocturia

Previous research conducted in Japan has shown that high salt intake is associated with nocturia. Compared to Western countries, Japanese individuals consume more salt and are more likely to be “salt-sensitive,” meaning their blood pressure increases more when they consume salt. These factors put Japanese individuals at a higher risk of developing hypertension.

Examining the Association Between Blood Pressure and Nocturia

A study was conducted on 3,749 residents of Watari in Japan who underwent an annual examination in 2017. Blood pressure was measured, and participants were asked about their experience of nocturia. Those with a blood pressure of 140/90 mmHg or higher, or those taking prescribed antihypertensive medication, were classified as hypertensive.

The study found a significant association between nocturia and hypertension. As the number of nocturnal trips to the toilet increased, the risk of hypertension also increased. In fact, waking up at night to urinate was linked to a 40% increased risk of hypertension.

Out of the 1,882 participants who responded to the questionnaire, 1,295 (69%) experienced nocturia. It's important to note that various factors, such as lifestyle, salt consumption, ethnic origin, and genetics, may influence the relationship between nocturia and hypertension.

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Hypertension: A Global Health Concern

High blood pressure, or hypertension, affects over one billion people worldwide and is the leading cause of premature death globally. In order to maintain a healthy lifestyle and reduce the risk of hypertension, it is recommended to follow a , restrict salt intake, moderate alcohol consumption, engage in regular , maintain a healthy weight, and quit smoking.

By monitoring blood pressure and making necessary lifestyle changes, individuals can reduce their risk of developing hypertension and associated conditions.


Tomohiro Matsuo. Daily salt intake is an independent risk factor for pollakiuria and nocturia.

* HEALTH PRESS aims to provide health information in an easily understandable language. It is important to note that the information provided in this article should not replace the advice of a healthcare professional.

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