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Stress can cause acute and chronic changes in certain brain areas which can cause long-term damage. [4] Over-secretion of stress hormones most frequently impairs long-term delayed recall memory, but can enhance short-term, immediate recall memory. This enhancement is particularly relative in emotional memory.
Your body is really good at letting out all the heat it produces, though it might not always feel that way. Even so, if you decide to go for a jog in humid, 95-degree weather, your body and brain ...
Intense psychological stress caused by unwanted, troublesome memories can cause brain structures such as the amygdala, hippocampus and frontal cortex to become activated, as they process the memory. Related to this, there is some neuroimaging ( fMRI ) evidence that those who are susceptible to PTSD have a hippocampus with a reduced size. [ 4 ]
Theories of a proposed stress–illness link suggest that both acute and chronic stress can cause illness, and studies have found such a link. [58] According to these theories, both kinds of stress can lead to changes in behavior and in physiology. Behavioral changes can involve smoking and eating habits and physical activity.
Here, experts share potential causes. Hot flashes, night sweats, and heat sensitivity can be a sign of hyperthyroidism, hormonal changes, or menopause. Here, experts share potential causes.
Other rare causes of hyperthermia include thyrotoxicosis and an adrenal gland tumor, called pheochromocytoma, both of which can cause increased heat production. [2] Damage to the central nervous system from brain hemorrhage, traumatic brain injury, status epilepticus , and other kinds of injury to the hypothalamus can also cause hyperthermia.
Prolonged stress can disturb the immune, digestive, cardiovascular, sleep, and reproductive systems. [17] For example, it was found that: Chronic stress reduces resistance of infection and inflammation, and might even cause the immune system to attack itself. [27] Stress responses can cause atrophy of muscles and increases in blood pressure. [28]
Definitions differ, and may be along the lines of continual activation of the stress response, [38] stress that causes an allostatic shift in bodily functions, [3] or just as "prolonged stress". [39] While responses to acute stressors typically do not impose a health burden on young, healthy individuals, chronic stress in older or unhealthy ...