Linda A. Johnson Latest articles by Linda A. Johnson Some Alzheimer's Drugs Very Risky By Linda A. Johnson published 12 October 06 Alzheimers & Dementia Sign up for the Live Science daily newsletter nowGet the world’s most fascinating discoveries delivered straight to your inbox.Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors LATEST ARTICLES1Enough fresh water is lost from continents each year to meet the needs of 280 million people. Here's how we can combat that.2Trump 2.0 is dismantling American science. Here's what's at stake, according to researchers.310 things we learned about Neanderthals in 20254Did reintroducing Wolves to Yellowstone really cause an ecological cascade?5'Nobody knew why this was happening': Scientists race to understand baffling behavior of 'clumping clouds'