Low water intake linked to risk of heart failure

(ORDO NEWS) — We all know well that a person cannot live without water. Many are sure that you need to drink at least eight glasses a day, others believe that the main thing is not to feel thirsty. However, a new study shows that the right level of hydration can reduce the risk of developing heart disease.

During the study, scientists from the Laboratory for Cardiovascular Regenerative Medicine at the National Heart Center, USA, analyzed information from more than 11,000 adults aged 45 to 66 years. The authors of the work followed the performance of the participants for 25 years.

To understand hydration levels, the researchers monitored participants’ blood sodium levels. This indicator increases as the level of fluid in the human body decreases. The normal range for serum sodium is 135 to 146 millimoles per liter (mmol/L), higher values ​​can cause the body to “save” water.

The researchers found that people with serum sodium levels in the upper range of the normal range above 143 mmol/L had a 39% increased risk of developing heart failure* over 25 years compared to those with lower levels. (*Heart failure is a condition in which the heart muscle cannot pump enough blood to meet the normal needs of the body)

The study also showed that for every 1 mmol/L increase in sodium levels within the normal range, the likelihood of developing heart failure increased by 5%.

How much water does a person need

Low water intake linked to risk of heart failure 2

Drinking enough fluids is important for many bodily functions, including helping your heart pump blood more easily. The authors of the study recommend that women drink 6 to 8.5 cups of fluid per day (1.5 to 2 liters) and men 8.5 to 12.5 cups.

However, people’s need for hydration can vary depending on a number of factors, including exercise levels, medical conditions, and medications. For example, people who already have heart failure may be asked to limit their fluid intake to 8.5 cups (2 liters) per day because the condition can lead to fluid buildup in the body.


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