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Roseola, also known as sixth disease, is an infectious disease caused by certain types of human herpes viruses. [2] Most infections occur before the age of three. [ 1 ] Symptoms vary from absent to the classic presentation of a fever of rapid onset followed by a rash.
In some cases, HHV-6 reactivation in the brain tissue can cause cognitive dysfunction, permanent disability and death. A growing number of studies also suggest that HHV-6 may play a role in a subset of patients with chronic neurological conditions such as multiple sclerosis , mesial temporal lobe epilepsy , status epilepticus and chronic ...
These diseases are known to have adverse effects on cognitive function. There is likely to be a causal association between particulate air pollution and effects on cognitive function in older people. [65] As of 2022, direct quantification of cognitive decline or dementia associated with air pollution would be subject to unknown uncertainty. [65]
Woodruff, who has studied the effect of some chemicals found in plastics on human health, reproduction, and development for two decades, first started looking into microplastics in 2021.
The effects of early-life exposures to anesthesia on the brain in humans are controversial. Evidence from nonhuman primate research suggests significant developmental neurotoxicity and long-term social impairment, with a dose–response relationship where repeated exposures cause a more severe impact than single ones.
Since brain circuits are vulnerable in early childhood, early stressors may impact the development of necessary brain connections. [4] Therefore, the theory of toxic stress is that stress might alter or impair brain circuit formation and essentially result in a small brain size in young children. [4]
The effects of green tea did not, however, extend to participants with the APOE e4 allele, or those with depression. In these people, the researchers found no association between green tea and ...
Neuroplasticity is the process by which neurons adapt to a disturbance over time, and most often occurs in response to repeated exposure to stimuli. [27] Aerobic exercise increases the production of neurotrophic factors [note 1] (e.g., BDNF, IGF-1, VEGF) which mediate improvements in cognitive functions and various forms of memory by promoting blood vessel formation in the brain, adult ...