National Hydration Day is observed worldwide every June 23 to remind individuals to stay hydrated, particularly during hot summer days and after physical activities. Established in 2016 by SafeTGard, a manufacturer of athletic protective gear, the date commemorates the death anniversary of Victor Hawkins, a football coach who invented a mouthguard designed to help athletes maintain electrolyte balance. The holiday encourages people to drink water consistently throughout the day, limit dehydrating beverages, and consume water-rich foods. It emphasizes the importance of replenishing fluids to prevent dehydration, which can lead to health issues like dizziness and kidney problems. Participants are encouraged to share information about hydration and promote the holiday on social media using the hashtag #NationalHydrationDay.