@lifesciencetrends: Living through more extreme heat days was linked to higher dementia risk in a 20-year study of 28,512 older Americans 🌡️ 7+ days a year above a 103°F heat index meant 23% higher risk, and the link was strongest where AC is less common. New research in Alzheimer's & Dementia. A link, not proof. #ScienceTok #learnontiktoktogether #HealthTok #Dementia #BrainHealth #Alzheimer #HeatWave #Climate #HealthyAging #Heat #Hot