Someone shared this fact with you
Did you know?
Water.Day_man showing tears
Your tears have the same salt level as the ocean

Human tears contain about 0.9% salt - nearly identical to seawater, like your body remembers where life began.

More bite-sized facts

Did you know?
Water.Day_woman hand on forehead
2% water loss = major brain fog

Losing just 2% of your body's water content can impair concentration, increase anxiety, and make tasks feel significantly harder.