Search results for brain

“A recent study found that five days of overeating high-calorie, nutrient-poor foods temporarily boosted brain insulin sensitivity but caused a drop in responsiveness once participants switched back to a healthier diet.”

“The glymphatic system comprises a vast arrangement of interstitial fluid-filled cavities surrounding the small blood vessels that serve the brain. These perivascular structures are formed by astroglial cells and expedite the removal of proteins and metabolites from the central nervous system.”

“Days later the mice had aggregates of alpha-synuclein in their intestines that had spread via the vagus nerve to the brain. Months later their brains had many alpha-synuclein aggregates in their brains that negatively affected their motor function.”

“TMS has also been shown to increase neurogenesis (growth of new brain cells) in mice.”

“The gut microbiome influences the development of social skills later in life, a recent study in fish has found. Fish that have delayed microbiome development show distinct differences in their brain structure and behavior compared to those with appropriately timed development.”

“But participants who frequently recalled their dreams performed better on creativity tests than those who rarely recalled their dreams, suggesting they had greater creative skills. The fMRIs revealed that frequent recallers also exhibited enhanced functional connectivity within the default mode network of their brains than infrequent recallers.”

“After 10 minutes of light exercise (30% VO2max) high-resolution functional magnetic resonance imaging showed better connectivity between the hippocampal dentate gyrus and cortical areas linked to detailed memory processing. The magnitude of the enhanced functional connectivity also predicted the extent of memory improvement suggesting that even light exercise is good for the brain.”

“Microglia are the brain’s resident immune cells. Their acute activation modulates inflammation and neurotoxicity, but chronic activation promotes brain inflammation and damage. Evidence suggests that microglia activation influences mood.”

“The pathological brain changes that drive Alzheimer's disease may begin as much as 20 years before cognitive signs become evident. However, evidence indicates that exercise can slow or prevent these changes.”

“The microbiota-gut-brain axis (MGBA), the bidirectional relationship between the microbes that inhabit the human gut and the nervous system, plays critical roles in neurological, hormonal, and immune function, influencing multiple aspects of health.”