Lack of water

Lack of water is the #1 trigger of daytime fatigue.

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Brain energy consumption

The human brain uses approximately as much energy as a 10 watt light bulb.

Brain survival time without oxygen

The brain can stay alive for 4 to 6 minutes without oxygen. After that cells begin die.

Look younger and more attractive

Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.

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