According to this Whoa: This Is What Happens to Your Body When You Drink Enough Water article on Domino, new general rule of thumb is half your weight in ounces. For example, for a person with a body weight of 120 pounds, then 60 ounces of water is required daily.

Quoting Dr. Dana Cohen, an integrative medicine specialist in New York, Kristin Limoges, author of the article writes “Long-term hydration is the single best thing we can do to prevent chronic illness”.

• Inadequate hydration can cause extreme fatigue, poor memory, dizziness, constipation, and even mood shifts. But the great news is that water can have immediate benefits, even within 10 minutes or less. “That charge increases the cells’ functional efficiency, leading to better energy, clearer thinking, and less brain fog”.
• Within seven days of being properly hydrated, you’ll have fewer aches and pains and bowel movements will become more regulated and frequent. “A body that has been suboptimally hydrated will, over time, shunt water toward essential organs like your heart and away from nonessential tissue like your skin and muscles. This can lead to wrinkled or drooping skin, as well as reduced muscle strength.”
• One month into drinking your daily recommended ounces of water, and you’ll be hitting your stride. You can expect clearer, less bloated skin, plus continuous benefits in mental clarity, muscle strength, and stamina.
• “Having our cells properly hydrated creates homeostasis in the body and flushes out toxins. The long-term benefits of avoiding dehydration play an important role in reducing the risk of diseases and disorders, like urinary tract infections, hypertension, coronary heart disease, glaucoma, and gallstone disease,” says Dr. Passler, a celebrity nutritionist and founder of Pure Change Detox.

If these facts, don’t inspire us to drink adequate water, what else does!