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Stress and the Brain
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Altered brain function due to stress hormones
The release of cortisol can inhibit the functioning of the prefrontal cortex, affecting decision making and emotional regulation.
Chronic stress and hippocampal damage
Long-term stress can lead to the degeneration of the hippocampus, impairing learning and memory.
Stress and synaptic plasticity
Excessive stress can affect synaptic plasticity, potentially causing a reduction in cognitive flexibility.
Impact of stress on Neurotransmitter systems
Stress can disrupt the balance of neurotransmitters like serotonin and dopamine, leading to mood disorders.
Stress-induced neuroinflammation
Stress can trigger neuroinflammatory pathways that may contribute to the development of neurodegenerative diseases.
The role of stress in triggering the fight or flight response
Acute stress activates the amygdala, leading to the release of adrenaline and noradrenaline, which prepare the body for a fight or flight response.
Stress and the alteration of gene expression
Stress can lead to epigenetic changes, altering the expression of genes related to brain function and mental health.
Effect of chronic stress on brain aging
Chronic stress has been associated with accelerated aging in the brain, potentially leading to early cognitive decline.
Stress and the risk of psychiatric disorders
Stress is a significant risk factor for the onset of various psychiatric disorders, including PTSD, depression, and anxiety disorders.
Stress and brain metabolism
Stress can affect brain metabolism, impacting the use of glucose and leading to energy imbalances in the brain.
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