Technologies such as noninvasive brain stimulation and virtual reality gaming offer insights into how dreams arise and what functions they might serve.
Saliva tests screen staff and students at University of Illinois; Study ranks species most susceptible to SARS-CoV-2 infection; COVID-19 clinical trials test drugs that inhibit kinin system
The Scientist and Jerome Siegel | Mar 1, 2016 | 10+ min read
Once believed to be unique to birds and mammals, sleep is found across the metazoan kingdom. Some animals, it seems, can’t live without it, though no one knows exactly why.
Leonard Hayflick has been unafraid to speak his mind, whether it is to upend a well-entrenched dogma or to challenge the federal government. At 86, he’s nowhere near retirement.
Discoveries announced at conference leave scientists feeling optimistic; yet their enthusiasm is tempered by several persistent concerns. AIDS researchers have many reasons to be encouraged. Studies show that treatments combining new and old drugs can control HIV levels in the blood. Moreover, many scientists and activists note, prevention efforts have helped reduce HIV infection rates. Yet the enthusiasm is tempered by several caveats. Drugs are expensive and have harsh side effects, leading