As spring draws near, many of us will take advantage of the heat and soak up as much vitamin D as possible. But as temperatures rise, staying hydrated becomes more important. While guidelines like the ...

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

While the common “8 glasses per day” rule is a general guide, daily water needs vary depending on factors such as age, sex, activity level, and diet. Your total hydration also includes fluids from ...

Just like “an apple a day,” we’ve always been told to drink eight glasses of water a day. Yet, this age-old advice may not be accurate after all. Sure, water is important — it’s actually considered a ...