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Symptoms include tingling sensation (usually in the limbs), abnormal heartbeat, painful muscle cramps, and seizures. Acute hypocapnia causes hypocapnic alkalosis, which causes cerebral vasoconstriction leading to cerebral hypoxia , and this can cause transient dizziness, fainting, and anxiety . [ 3 ]
Dicamba is toxic to conifer species but is in general less toxic to grasses. [2] Dicamba is a synthetic auxin that functions by increasing plant growth rate, leading to senescence and cell death. [2] [11] The growth regulating properties of dicamba were first discovered by Zimmerman and Hitchcock in 1942. [12]
Physiological causes could include a pheochromocytoma, heart attack, blood transfusion, anaphylaxis, [1] or use of some psychoactive substances. [2] The feeling can also be a transient side effect of adenosine administration, likely due to its activation of adenosine receptors. Due to adenosine's extremely short half-life, this effect is ...
Toxic encephalopathy is a neurologic disorder caused by exposure to neurotoxic organic solvents such as toluene, following exposure to heavy metals such as manganese, as a side effect of melarsoprol treatment for African trypanosomiasis, adverse effects to prescription drugs, or exposure to extreme concentrations of any natural toxin such as cyanotoxins found in shellfish or freshwater ...
This may be due to the direct action of the substance, with the impairment and neurocognitive deficits being temporary, and resolving when the substance is eliminated from the body. In some cases the level or exposure-time may be critical, with some substances only becoming neurotoxic in certain doses or time periods.
Hyperventilation syndrome occurs when an individual experiences deep, quick-paced breathing, eventually affecting blood flow to the brain and altering conscious awareness. [63] It has been shown that several various breathwork techniques can reduce symptoms in patients diagnosed with anxiety disorders.
Many people with chronic obstructive pulmonary disease have a low partial pressure of oxygen in the blood and high partial pressure of carbon dioxide.Treatment with supplemental oxygen may improve their well-being; alternatively, in some this can lead to the adverse effect of elevating the carbon dioxide content in the blood (hypercapnia) to levels that may become toxic.
Diseases involving the shape and strength of the heart can be a cause of reduced blood flow to the brain, which increases risk for syncope. [3] The most common cause in this category is fainting associated with an acute myocardial infarction or ischemic event.