Podcast
Questions and Answers
Which hormone is responsible for the regulation of circadian rhythms?
Which hormone is responsible for the regulation of circadian rhythms?
At what time does melatonin typically reach its peak secretion level?
At what time does melatonin typically reach its peak secretion level?
Which hormone regulates energy homeostasis by increasing appetite and food intake?
Which hormone regulates energy homeostasis by increasing appetite and food intake?
At what time does adiponectin begin secretion and ends at 8 p.m.?
At what time does adiponectin begin secretion and ends at 8 p.m.?
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What is the role of adiponectin in metabolism?
What is the role of adiponectin in metabolism?
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At what time does insulin peak during the afternoon?
At what time does insulin peak during the afternoon?
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What effect does leptin have on metabolism?
What effect does leptin have on metabolism?
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Which hormone is secreted by the liver at 4 a.m. and peaks at 6 a.m.?
Which hormone is secreted by the liver at 4 a.m. and peaks at 6 a.m.?
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When is melatonin produced signaling the beginning of the resting phase?
When is melatonin produced signaling the beginning of the resting phase?
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Why is it more efficient to consume food earlier in the day during the active phase?
Why is it more efficient to consume food earlier in the day during the active phase?
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Melatonin secretion peaks at 10 a.m.
Melatonin secretion peaks at 10 a.m.
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Cortisol secretion is inhibited by melatonin.
Cortisol secretion is inhibited by melatonin.
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Ghrelin has two peaks of secretion during the day.
Ghrelin has two peaks of secretion during the day.
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Adiponectin secretion begins at 10 a.m.
Adiponectin secretion begins at 10 a.m.
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Adiponectin improves glycolysis and fatty acid oxidation by inhibiting AMPK activation.
Adiponectin improves glycolysis and fatty acid oxidation by inhibiting AMPK activation.
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Leptin stimulates fat accumulation and inhibits lipolysis.
Leptin stimulates fat accumulation and inhibits lipolysis.
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Insulin induces catabolic processes during the afternoon.
Insulin induces catabolic processes during the afternoon.
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FGF-21 promotes fatty oxidation and glycolysis inhibition.
FGF-21 promotes fatty oxidation and glycolysis inhibition.
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Melatonin is secreted at 10 p.m. and marks the beginning of the active phase.
Melatonin is secreted at 10 p.m. and marks the beginning of the active phase.
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Eating food earlier in the day during the active phase is less efficient for digestion and metabolization.
Eating food earlier in the day during the active phase is less efficient for digestion and metabolization.
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Study Notes
Circadian Rhythms and Hormone Regulation
- Melatonin is responsible for regulating circadian rhythms.
- Melatonin typically reaches its peak secretion level at 10 p.m., signaling the beginning of the resting phase.
- Cortisol secretion is inhibited by melatonin.
Energy Homeostasis and Metabolism
- Ghrelin regulates energy homeostasis by increasing appetite and food intake.
- Ghrelin has two peaks of secretion during the day.
Adiponectin Regulation
- Adiponectin regulates metabolism by improving glycolysis and fatty acid oxidation.
- Adiponectin secretion begins at 10 a.m. and ends at 8 p.m.
- Adiponectin inhibits AMPK activation to improve glycolysis and fatty acid oxidation.
Insulin and Leptin Regulation
- Insulin regulates metabolism by inducing anabolic processes.
- Insulin peaks during the afternoon.
- Leptin stimulates fat accumulation and inhibits lipolysis.
Efficient Food Consumption
- It is more efficient to consume food earlier in the day during the active phase for better digestion and metabolization.
- FGF-21 promotes fatty acid oxidation and glycolysis inhibition.
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Description
Test your knowledge on the biological clock known as circadian rhythms and the hormone melatonin that regulates sleep patterns. Learn about the characteristic pattern of melatonin secretion and its impact on our daily cycles.
