Why Sweat & Tears Are Salty: Unraveling the Body's Saline Secret

• Sweat and tears are salty due to sodium chloride (common salt) and electrolytes like potassium and magnesium, essential for body functions.
• Tears, 98% water, contain salt, proteins, and oil, acting as a protective shield against bacteria and maintaining eye moisture.
• Sweat is the body's natural cooling system; glands release water and salt, with water evaporating and salt remaining on the skin.
• The body obtains salt from food and water, which converts into electrolytes vital for muscle contraction and nerve signals.
• Kidneys filter excess salt, excreting it via urine, while sweat and tears also aid in maintaining stable electrolyte levels.