A new study from the National Institutes of Health shows that well-hydrated adults appear to live longer and age more healthily than those who do not consume sufficient fluids. The results of the study are based on data collected over 25 years from more than 11,000 U.S. adults. These participants did the test in their 50s and continuing until ages 70 through 90.
The researchers used the level of sodium in the participants’ blood as a criterion for adequacy of hydration, as higher concentrations indicated they were likely not consuming enough water. Researchers found that participants with high blood sodium levels aged faster physiologically than those with low blood sodium levels. These results were reflected in health indicators associated with aging such as systolic blood pressure, cholesterol and blood sugar.
The participants’ blood sodium concentrations were all within the normal range: 135 to 146 millimolar per liter. The study found that people with blood sodium levels above 142 were also at increased risk for certain chronic diseases including heart failure, stroke, chronic lung disease, diabetes and dementia.
Regular physical activity and proper nutrition are considered as healthy lifestyles. Consistent good hydration in these healthy lifestyle may further slow the aging process.
How much water should we drink a day?
The correct way to drink water should follow these principles：
1、Small quantities, many times. about 200 ml each time.
2、Proactive water drinking, especially these three times during a day.
Time period 1: after wake up in the morning
Drink a glass of water on an empty stomach after waking up in the morning to reduce blood viscosity and increase circulating blood volume. [It’s too important！！！！]
Time period 2: before going to bed
Drink a glass of water before going to bed (but beware of not drinking a lot of water after half an hour before bedtime) to help prevent increased blood viscosity at night.
Time period 3: after sweating
Drinking enough water as needed after exercising or sweating. Light salt water or sports drinks should be supplemented after exercise.
Do not wait for thirst before drinking water and develop a good habit of drinking water.
