Alzheimer's Breakthrough: Lifestyle Changes, Space Tourists' Physiological Changes, Study Reduces Ozone-Depleting HCFCs, Study Reveals Toxic Levels in 'Cancer Alley', and more...

(0:10): Breakthrough in Alzheimer's: Lifestyle Changes and Exercise Show Promise in Slowing Cognitive Decline(2:10): Space Tourists Experience Astronaut-Like Physiological Changes, Study Reveals(4:20): Study Shows Early Success in Reducing Ozone-Depleting HCFCs, Boosting Climate Efforts(6:08): Johns Hopkins Study Reveals Toxic Ethylene Oxide Levels in Louisiana’s 'Cancer Alley,' Urges Stricter Regulations(8:02): Cambridge Scientists Create 'Mini-Guts' to Uncover Crohn's Disease Secrets, Pave Way for Personalized TreatmentsTo subscribe visit https://www.brief.news.For more updates in your inbox each morning visit www.brief.news. Image credit: The Guardian