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Questions and Answers
What are the two main sources of signals that make us feel sleepy?
What are the two main sources of signals that make us feel sleepy?
- Signals from our stomach and signals from our skin
- Signals from our muscles and signals from our bones
- Signals from our body and signals from the environment (correct)
- Signals from our brain and signals from our heart
Why do we feel sleepy when it's dark outside?
Why do we feel sleepy when it's dark outside?
- Because our brain is producing more serotonin
- Because our environment is sending signals to our brain (correct)
- Because our body is producing more melatonin
- Because our heart is beating slower
What is the primary function of signals from our body?
What is the primary function of signals from our body?
- To tell our brain we are tired (correct)
- To wake us up
- To regulate our body temperature
- To make us feel hungry
What happens when our brain receives signals from our body and environment?
What happens when our brain receives signals from our body and environment?
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What is the relationship between darkness and sleepiness?
What is the relationship between darkness and sleepiness?
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