In a vasovagal episode, the vagus nerve (one of the nerves that helps control basic body functions like heart rate, breathing, and blood pressure) is overly stimulated and can cause the heart rate to slow and blood vessels to dilate. This decreases the flow of blood to the brain and can...
The article discusses research on brain abnormalities linked to symptoms of fibromyalgia. It references a study published in the November issue of the "Journal of Nuclear Medicine." The findings allegedly have disputed that pain from the condition stems from psychological or psychiatric symptoms. An ...
Hemophilia and sickle cell anemia can both cause decreased levels of platelets, blood cells that stop bleeding by forming clots. Liver disease. This condition is linked to increased bleeding in general. Brain tumors. More studies need to be done to understand which types of tumors are likely ...
Dizziness, lightheadedness, and the feeling of passing out are common complaints in people who have low blood pressure. When the blood pressure is too low, not enough oxygen-rich blood is delivered to the brain, and its function can be affected. If the brain's blood supply is decreased to...
the brain arouses to restore breathing. The arousals are usually so brief that many patients are completely unaware of them. The repeating sleeping and waking pattern means the sufferer will often not get enough sleep leading to problems such as day time sleepiness, decreased libido and ...
Cerebral edema, swelling of part or all of the brain, caused by the presence of excess fluid within either the cells or the extracellular tissues of the brain. Cerebral edema typically occurs as a complication of injury, infection, or disease, and sympto
Stroke, sudden impairment of brain function resulting from a substantial reduction in blood flow to some part of the brain or from intracranial bleeding. The consequences of stroke may include transient or lasting paralysis, difficulties in speaking or e
According to a November 2020 study, neurological symptoms of COVID-19 are multi-factorial, possibly resulting from things such as lack of oxygen, inflammation, disrupted blood flow, increased blood clot risk and direct infection to nerve tissue by the virus. Research is ongoing. Next:No symptoms...
Over several weeks, anxious arousal (panic) and anxious apprehension (worry) decreased with virtual nature exposure. Participants identifying as women, past VR users, experienced with the outdoors, and engaged with the beauty in nature benefited particularly strongly from virtual nature. Virtual nature...
The ankle and foot area can appear pale and can be a symptom of a blood clot or DVT in the leg. The foot will appear pale in comparison to the unaffected leg. Decreased blood flow that causes foot pallor also makes the foot feel cooler to the touch. Left untreated, a bluish discolorat...