Sleep.

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Coffee. :P

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sleep

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Sleep and/or sex

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Time to do what I want to do, when I want to do it.

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food

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Exercise. I need my daily walk.

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grip

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Australia winning the ashes BACK

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Ummmmmmm.....Diet Coke and a blow job?

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food, space, quiet, being listened to, daylight

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i am way past grumpy, its been years

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sleep

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As a neurotransmitter, serotonin helps to relay messages from one area of the brain to another. Because of the widespread distribution of its cells, it is believed to influence a variety of psychological and other body functions. Of the approximately 40 million brain cells, most are influenced either directly or indirectly by serotonin. This includes brain cells related to mood, sexual desire and function, appetite, sleep, memory and learning, temperature regulation, and some social behavior.

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