Intro
Epigenetics is often presented as the bridge between genes and environment. This guide will separate what is well-established from what is marketing.
Key Points
- Epigenetics regulates gene expression without changing DNA sequence
- “Aging clocks” are biomarkers, not destiny
- Short-term clock changes don’t automatically mean long-term benefit
FAQ
Q: What is epigenetics?
A: Regulation of gene expression via chemical modifications (e.g., methylation) without changing DNA sequence.
Q: What do epigenetic clocks measure?
A: DNA methylation patterns correlated with age and risk — informative, but not perfect.
Q: Can you reverse epigenetic age?
A: Clock shifts are possible; outcome significance remains uncertain.