
Life expectancy is not just about how many years we live, but how many years we spend in good health, free of chronic diseases or age-related disabilities.
According to Emily Johnston, a research professor at NYU Langone and a specialist in healthy aging, increasing healthy years doesn't require complicated tricks, but simple daily habits.
Longevity tip of the day: A glass of water as soon as you wake up
"Start every day without exception with at least a glass of water," Johnston told TODAY.
Before coffee, tea, or any other beverage, drink a full glass of water. “It should be the first thing you touch in the morning,” she emphasizes. This simple act helps jumpstart hydration for the day, before caffeinated or sugary drinks.
“Hydration is probably underrated,” adds Johnston.
Why is water so important?
Water is essential for the body to function: it helps transport nutrients, remove waste, lubricate joints, and regulate body temperature. Various studies show that people who stay hydrated age biologically more slowly and develop fewer chronic diseases.
However, as we age, it becomes more difficult to drink enough water. “The sense of thirst diminishes and many adults don’t reach the minimum recommended amount,” explains Johnston.
On average, a person needs about 2.7–3.7 liters of fluids per day from drinks and food, of which at least two liters should be water. This translates to about six to eight glasses of water per day, while active people or those living in hot climates may need more.
According to data, about 75% of Americans are chronically dehydrated. Dehydration can cause fatigue, dizziness, and headaches, and in the long term increases the risk of kidney problems and serious complications, according to the Mayo Clinic.
How do you get it back into the habit?
It's never too early or too late to adopt habits that support healthy aging. Keep a glass or bottle of at least 8 ounces of water by your bed and drink it as soon as you wake up. Then, make sure to stay hydrated throughout the day.
About 20% of fluids are also obtained from food, so water-rich fruits and vegetables are a great additional help.
A glass of water in the morning may seem small, but for long-term health, it's a big step.