Before lab drink water and/or eat something to avoid fainting or feeling light-headed in the lab room.
If you want to stay hydrated and avoid fainting then drink plenty of water.
Water is essential part of the human body as the human body carries around 60% of water.
A person can survive only 4-5 days without water.
Water is crucial for the proper functioning of the body as it washes away the fluid from the body, regulates body temperature, and also transports nutrients from one part of the body to the other.
It is also necessary for food digestion and for other important metabolic reactions.
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