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Radiation-induced cognitive decline describes the possible correlation between radiation therapy and cognitive impairment. Radiation therapy is used mainly in the treatment of cancer. Radiation therapy can be used to cure, care or shrink tumors that are interfering with quality of life. Sometimes radiation therapy is used alone; other times it ...
However, the brain’s vascular system may be a primary reason for this neuronal death. As the authors of the new study point out, diseases that impact blood vessels, like stroke, atherosclerosis ...
Progressive supranuclear palsy ( PSP) is a late-onset neurodegenerative disease involving the gradual deterioration and death of specific volumes of the brain. [2] [3] The condition leads to symptoms including loss of balance, slowing of movement, difficulty moving the eyes, and cognitive impairment. [2] PSP may be mistaken for other types of ...
The expensive tissue hypothesis ( ETH) relates brain and gut size in evolution (specifically in human evolution). It suggests that in order for an organism to evolve a large brain without a significant increase in basal metabolic rate (as seen in humans), the organism must use less energy on other expensive tissues; the paper introducing the ...
The causes listed are relatively immediate medical causes, but the ultimate cause of death might be described differently. For example, tobacco smoking often causes lung disease or cancer, and alcohol use disorder can cause liver failure or a motor vehicle accident. For statistics on preventable ultimate causes, see preventable causes of death.
A neurodegenerative disease is caused by the progressive loss of neurons, in the process known as neurodegeneration. [2] [3] Neuronal damage may also ultimately result in their death. Neurodegenerative diseases include amyotrophic lateral sclerosis, multiple sclerosis, Parkinson's disease, Alzheimer's disease, Huntington's disease, multiple ...
Now, scientists from the Mayo Clinic have identified another memory-loss condition found in older adults that is frequently misdiagnosed as Alzheimer’s disease. Researchers have developed new ...
Sleep outside of the REM phase may allow enzymes to repair brain cell damage caused by free radicals. High metabolic activity while awake damages the enzymes themselves, preventing efficient repair. This study observed the first evidence of brain damage in rats as a direct result of sleep deprivation. [71]