Water is essential for life but only 1% of the world's water is available as freshwater for human use. Most freshwater is frozen in ice or unavailable on land, leaving only 0.01% accessible to humans. However, many people still lack access to clean drinking water, which can lead to disease and death according to UN reports. Since water makes up 75% of the human body and 85% of the brain, any damage from unsafe water can seriously threaten health and life. It is important to be aware of and beware the dangers of unclean water.