Examlex
Define a fuel.Give an example.Include a balanced chemical reaction.
Hormone System
Also known as the endocrine system, it's a network of glands and organs that produce, store, and secrete hormones to regulate the body's functions.
Brain Structure
The anatomical organization of the brain, including its parts and their connections, which underlie cognitive functions and behaviors.
Sleep Patterns
The cyclical nature of sleep and waking states that an individual exhibits, including duration, quality, and consistency of sleep.
Serotonin Level
The concentration of serotonin, a key neurotransmitter involved in regulating mood, appetite, and sleep, in the brain.
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