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The Cause of Depression Is Probably Not What You Think
Depression has often been blamed on low levels of serotonin in the brain. That answer is insufficient, but alternatives are coming into view and changing our understanding of the disease.
Epigenetic ‘Clocks’ Predict Animals’ True Biological Age
A statistical analysis of chemical tags on DNA may help unify disparate theories of aging.
In Sexy Worms, Inheritance Beyond Genes Can Help Evolution
Traits from RNA molecules passed between multiple generations of worms can work with genetic changes to influence future evolution.
To Learn More Quickly, Brain Cells Break Their DNA
New work shows that neurons and other brain cells use DNA double-strand breaks, often associated with cancer, neurodegeneration and aging, to quickly express genes related to learning and memory.
A Newfound Source of Cellular Order in the Chemistry of Life
Inside cells, droplets of biomolecules called condensates merge, divide and dissolve. Their dance may regulate vital processes.
The Epigenetic Secrets Behind Dopamine, Drug Addiction and Depression
New research links serotonin and dopamine not just to addiction and depression, but to the ability to control genes.
‘Trained Immunity’ Offers Hope in Fight Against Coronavirus
A novel form of immunological memory that was mostly ignored for a century extends the benefits of vaccines. It could be of help in ending the COVID-19 pandemic.