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The hippocampus and the prefrontal cortex are interconnected brain regions, playing central roles in higher brain functions, including learning and memory, planning complex cognitive behavior, and moderating social behavior. The axons in these ...
1 Μαΐ 2023 · Circadian rhythm is the 24-hour internal clock in our brain that regulates cycles of alertness and sleepiness by responding to light changes in our environment. Our physiology and behavior are shaped by the Earth’s rotation around its axis.
20 Νοε 2018 · Many processes in the human body — including brain function — are regulated over the 24-hour cycle, and there are strong associations between disrupted circadian rhythms (for example,...
The scientists conducting this multiyear study want to know how prolonged changes to circadian rhythms—the internal processes that follow a roughly 24-hour cycle—may affect metabolism and body weight in people who keep unconventional sleep-wake schedules, such as nurses, security guards, and pilots.
The results are clear: within several hours, the main axon of the sensory neuron shows an increase in the number of synapses. Exposing the neurons to the second messenger cyclic AMP produces a similar result.
Overall, both GnRH I and II are widely expressed within the human brain. As expected based on traditional understanding of the role of GnRH in the HPG axis, GnRH I is highly expressed in the hypothalamus, especially the arcuate nucleus.
30 Μαρ 2022 · Your brain receives signals based on your environment and activates certain hormones, alters your body temperature, and regulates your metabolism to keep you alert or draw you to sleep.
