2025 Archive

Insufficient sleep dramatically changes how we feel and think, about ourselves and about others. Even a single night of sleep loss elevates levels of anxiety, depression, and asocial behavior in healthy adults. If sleep loss is chronic, this association can develop into a clinical mental disorder. Since 40% of adults in the US suffer from chronic insufficient sleep, researchers need — and are finding — a better understanding of the interaction between sleep and socio-emotional well-being.

Our speaker is sleep expert Eti Ben-Simon, PhD, Research Scientist at The Center for Human Sleep Science, UC Berkeley.

Dr. Eti Ben-Simon

What can we do, today, to improve muscle strength and, accordingly, to increase healthy longevity, i.e., healthspan? It starts by understanding the science of strength and of muscle function, and then appreciating how muscle changes with aging. Ultimately, we find that healthspan increases with simple and effective evidence-based strategies for improving muscle health and function.

Our speaker, Dr. Greg Tranah, PhD, is Professor of Epidemiology & Biostatistics at UC San Francisco. He is also Senior Scientist at California Pacific Medical Center Research Institute.

Dr. Greg Tranah

All known lifeforms rely on the same molecular mechanism to translate information carried by DNA and RNA into proteins. This translation is accomplished by an incredibly complex system involving many dozens of very large and precisely interacting molecules. All viruses, bacteria, plants, and animals ultimately inherited this common molecular machinery from our Last Universal Common Ancestor (LUCA). But all of this — and much more — had to evolve prior to LUCA. Without this translation machinery, the “genetic code” isn’t information about anything! So, origins-of-life theories can’t just assume that DNA and RNA intrinsically have information. Even the most widely accepted “RNA-World” origin-of-life theory begs the question: What is the origin of life’s information?

Our speaker, Dr. Terrence Deacon, is Professor Emeritus of Anthropology at UC Berkeley. He is the author of two particularly influential books: The Symbolic Species: The Co-evolution of Language and the Brain and Incomplete Nature: How Mind Emerged from Matter.

Dr. Terrence Deacon