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Repeated exposure to explosive blasts increases soldiers risk of brain injury

Soldiers can suffer brain injury if they are repeatedly exposed to explosive blasts, a new study shows.

United statesYelena bodienProceedings of the national academy sciencesHospital centerUs special operationsNational academyMassachusetts general hospitalOperations forcesUnited stateBrain edlowMass generalGlobal warBrain injuryDiagnostic testMilitary personnelGrain structure

Mounting research shows that COVID-19 leaves its mark on the brain, including with significant drops in IQ scores

Two new high-profile studies add to the increasingly worrisome picture of how even mild cases of COVID-19 can have detrimental effects on brain health.

United statesUs current populationUs senateEuropean unionNew england journalPopulation surveyBrain fogCognitive deficitsBlood brain barrierCovid 19Mental health disordersHuman brainBrain agingGrain structureBrain damageNew england journal of medicine

Strict bedtimes could make children s brains bigger and healthier

Sticking to family routines and ensuring a strict bedtime could help children have healthier and bigger brains, a study suggests.

United statesColorado state universityEmily merzAmerican association for the advancement of scienceCarolina academy of scienceAmerican associationAnnual conferenceNorth carolina academyFamily routinesGrain structureLack of sleepColorado state universityBrain developmentOgnitive function

Racism produces subtle brain changes that lead to increased disease risk in Black populations

Racial threats and slights take a toll on health, but the continual invalidation and questioning of whether those so-called microaggressions exist has an even more insidious effect, research shows.

Emory universityUnited statesArline geronimusNathaniel harnettHarvard medical schoolGrady trauma projectNegar faniRacial discriminationHealth problemsBrain imagingHealth disparitiesBlack communitiesGrain structureBrain imagesAlzheimers diseaseNegar fani

Study links low brain serotonin levels to decline of brain function

Loss of the "happiness" brain hormone serotonin might play a role in the decline of brain function as a person ages, a new study reports.

Johns hopkinsGwenn smithJohns hopkins university school of medicineJohns hopkins university schoolSerotonin transportersBrain functionLzheimer 39s diseaseEgions of the brainMild cognitive impairmentBrain chemicalBrain degenerationGrain structureBrain hormoneAmyloid betaCognitive deficitsMemory problems

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