NATIONAL REHYDRATION DAY | Monday after the Big Game

NATIONAL REHYDRATION DAY

National Rehydration Day on the Monday after the Big Game puts a spotlight on mass dehydration following the most-watched, and cheered for, sporting event in America each year--the Big Game. While the day before is a nationwide celebration, the morning after is a call to everyone – not just the athletes on the big screen- to focus on recovery, wellness, and replenishing the body.

#NationalRehydrationDay

The Big Game isn’t just a football game. It's a cultural phenomenon full of friends, food and sometimes, too many adult beverages. In fact, the Monday following the festivities is notorious for sluggish productivity and is actually known as America’s most-called-off workday of the year. With over 100 million people tuning in, many take part in celebrations of overindulgence of food and drink.

National Rehydration Day reminds us that ‘Hydration Regret’ is a real thing. Seventy-five percent of Americans are chronically dehydrated even on a normal day. A study recently done by Liquid I.V. found 8 in 10 American’s wish they hydrated better, with one-third admitting to feeling the crash when they don’t hydrate. When you add a major celebration into the mix, rehydrating the next day becomes increasingly important to help aid recovery to tackle the Monday ahead.

7 Signs of Dehydration

If you’re tired, cranky, headachy, or forgetting what day it is...hydration might be the plot twist. Even 1–2% dehydration can mess with your mood, energy, focus, and how your body feels. Most people don’t even notice when it's happening, but your body is basically waving a little flag with warning signs. Here are signs to look out for:

  1. Yellow Pee: Yellow pee = yellow flag. One of the easiest ways to know if you’re dehydrated is through your pee. In fact, over 70% of Millennials see yellow pee as a clear sign of dehydration. If you notice that you are rarely going to the bathroom throughout the day and/or your pee is darker in color, that could be a sign you’re dehydrated.

  2. Thirst: Mouth feeling like a desert? Feeling thirsty could mean your body needs fluids and may indicate mild dehydration.

  3. Fatigue: Feeling that mid-day slump or decrease in physical energy? This may mean you’re dehydrated and it’s time for a proper hydration break.

  4. Brain Fog: Ever feel like you’re losing your train of thought? Take a sip! Dehydration may make it difficult to concentrate, focus, or think clearly and can impair cognition.

  5. Nausea: Dehydration may cause nausea for several reasons, primarily due to fluid and electrolyte imbalances.

  6. Headaches: Tension headaches you experience throughout the day may be due to dehydration. That ringing? It could be dehydration calling. Hello, you need to hydrate!

  7. Irritability: Feel like you're snapping at everyone? Being dehydrated can impact mental performance, cognition function and mood.

(These are potential signs of mild to moderate dehydration. If you are concerned about any of these, please seek medical advice.)

Dehydration isn’t just uncomfortable, it’s often overlooked. The goal of National Rehydration Day is to shift the "sick day" culture into a "wellness day" culture, promoting hydration and recovery awareness through social media and workplaces across the country. By dedicating this day to rehydration, we encourage a faster return to productivity and a more energized start to the week.

HOW TO OBSERVE #NationalRehydrationDay

National Rehydration day serves as a strategic reminder that while the Big Game is about the celebration, the day after is about the recovery. Celebrate today by making your recovery a priority.

  1. Start with Water: Drink a full glass of water immediately upon waking.

  2. Balance Your Electrolytes: Reach for beverages containing sodium, potassium, and magnesium to help your body absorb water more effectively. For instance, Liquid I.V.® provides a science-backed formula in their Hydration Multiplier® Sugar-Free powder that is designed with an optimized ratio of electrolytes, essential vitamins, and clinically tested nutrients to transform ordinary water into extraordinary hydration.

  3. Educate Your Team: Ensure you and your ‘team’ are taking hydration breaks using hydration stations around the office (or at home) or stocking up on products like Liquid I.V. in the breakroom or pantry to boost morale and productivity.

  4. Eat Your Hydration: Incorporate water-rich foods like cucumber, watermelon, and celery into your meals.

  5. Spread the Word: Use #NationalRehydrationDay on social media to share your favorite recovery tips and remind your friends to hydrate!

NATIONAL REHYDRATION DAY HISTORY

National Rehydration Day was founded in 2026 by Liquid I.V.® to address the recovery needed following America’s largest annual sports celebration. Join National Day Calendar and Liquid I.V. as we educate fans in how to maintain healthy hydration while participating in one of the biggest sporting events in the U.S.

About the Founder

Liquid I.V.® is America’s #1 powdered hydration brand since 2020. Based in Los Angeles, CA, and part of Unilever, their products are rooted in science, driven by culture, and grounded with impact.

Liquid I.V. delivers hydration solutions beyond water alone, helping to elevate the vitality of the people and the planet. More than 1% of their revenue goes directly to programs that expand access to clean water worldwide, reinforcing the company's commitment to a healthier planet for all.

As of 2026, Liquid I.V. has donated over 81 million servings globally and continue to make hydration accessible to communities in need.

Powered by LIV HYDRASCIENCE™, Liquid I.V.'s science-backed formula is designed with an optimized ratio of electrolytes, essential vitamins, and clinically tested nutrients to transform ordinary water into extraordinary hydration. Every great tasting formula contains 3x more electrolytes than the leading sports drink. Not only does it contain five essential vitamins, the formula is also vegan, gluten-free, and non-GMO.

Liquid I.V. Products

  • Hydration Multiplier®

  • Hydration Multiplier® Sugar-Free

  • Energy Multiplier® Sugar-Free

  • Hydration Multiplier® +Energy

  • Hydration Multiplier® +Immune Support