Perhaps many elderly people are curious, why does drinking water affect their health? First of all, the human body is about 70% water. Without water, the body cannot maintain normal metabolism. When the earth is dry, plants will dry up easily, and the body will face similar problems if it is short of water.
In addition, various studies at home and abroad show that people who drink moderate amounts of water are healthier than those who don't like drinking water. A British study shows that women who drink 5 glasses of water a day are nearly 50% less likely to develop breast cancer than women who don't like drinking water.
Because people's breathing, sweating, defecation and other behaviors will lead to water loss in a day, it is necessary to supplement enough water to maintain the balance between input and output.
The reason why the drinking water of the elderly should be kept at around 1.5L-2L is because the researchers found that the elderly over 65 years old could not feel thirsty in time due to the decline of renal function.
Supplementing the water content of 1.5L-2L can not only avoid the dehydration problem of the elderly, but also ensure the life safety of some elderly patients such as kidney disease and heart disease. Studies have shown that when the water intake of the elderly can not meet their needs every day, it will lead to the further deterioration of the original condition. Excessive water intake can also cause some diseases, so it is recommended to drink less 2L.
There are so many kinds of water, how to choose?
In addition to the amount of water to drink, many people still have a question. What kind of water is most beneficial to health? After all, there are many kinds of water now, including mineral water, drinks, tea, lemonade and so on, so how to choose?
1. The most suitable water for replenishing water is always boiled water or mineral water. Although there are many kinds of water, drinking water is to meet the basic water supply needs.
Therefore, boiled water and mineral water are undoubtedly the first choice for water replenishment, which are not only cheap but also easy to obtain. Especially boiled water, when you are uncomfortable or when the weather is cold, drinking a cup of warm water is more beneficial to your health.
2. Don't make tea or scented tea too strong. Others like to drink green tea, black tea or scented tea, and others like to whiten with lemonade.
But for people with excessive gastric acid secretion, it is not recommended to drink lemonade or strong tea water, which will increase the burden on the stomach. In addition, polysaccharide or honey should not be added too much, which is not only easy to gain weight, but also may affect the absorption of minerals.
3. People with low stomach acid or high blood pressure are not suitable for drinking baking soda water. Baking soda water is not only more expensive, but also contains sodium ions, which will aggravate the symptoms of hypertension, neutralize gastric acid and reduce gastric acid, so these two kinds of people should pay special attention.
In short, for the elderly who need to replenish water, boiled water or purified water can meet their basic needs. If you like drinking tea at ordinary times, it is also suggested to choose different teas according to the season, such as scented tea in spring, green tea in summer and black tea in winter. And keep in good health according to the season.
As for the best time to drink water, there is no complete conclusion. Basically, after getting up in the morning, you can drink a little at 10 am, 2 pm and 4 pm, even if you are not too thirsty. When your mouth is dry, it means that your body is already in a state of water shortage. At this time, the hydration effect may not be very good.