Explanation

• Human tissue contains about 20% water in Nerve Cells
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• Water is the most abundant molecule in cells, accounting for 70% or more of total cell mass
  
• Brain cells contain 85% water.
• In adult men, about 60% of their bodies are water

The organs in the human body with the highest percentages of water are the brain (80-85%),

• kidneys (80-85%),
• heart (75-80%),
• lungs (75-80%),
• liver (70-75%),
• muscles (70-75%),
• and skin (70-75%).