TED: How early life experience is written into DNA | Moshe Szyf

The video explores the concept of epigenetics, focusing on how maternal behavior in rats affects gene expression and stress levels in offspring. Through cross-fostering experiments, it is shown that the nurturing environment, rather than genetic inheritance, plays a crucial role in shaping behavior. The discussion extends to humans, highlighting natural experiments like the Quebec ice storm to illustrate the impact of stress on gene expression. The video also covers a study on cocaine addiction, demonstrating the potential to reprogram the brain using epigenetic treatments. Overall, it emphasizes the dynamic nature of DNA and its implications for health and disease.

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