The epigenome is actually pretty sturdy; it’s primarily shaped by our DNA sequence itself and transcription factors, rather than being a master controller that changes everything on a whim based on every meal or stressful morning.
I want to learn more about epigenetics including how solid is the science, do I have to throw out my cookbooks, do I have to become vegan and does it help protect against cancer? How about autoimmune diseases like ms and MG?








While there is significant buzz around the idea that we can flip switches on our genes with every meal or stressful moment, molecular biology suggests this is largely a myth. Research indicates that the epigenome is actually quite sturdy and primarily shaped by the DNA sequence itself and transcription factors. The belief that we have total control over our genes is often referred to as genetic denialism, which oversimplifies how our biological destiny is determined.
Epigenetic determinism is the concept that your health and biological future were decided by the environmental factors experienced by your ancestors, such as what your grandmother ate. This idea can be terrifying as it suggests our destiny is fixed by past generations. However, a major 2022 appraisal of the field suggests that these direct environmental hits are less influential than the underlying DNA sequence and transcription factors that maintain our epigenome.
Transcription factors are critical components in molecular biology that help shape the epigenome. Rather than the epigenome being a fragile system easily altered by a single bad meal or a stressful morning, it is a robust structure guided by these factors and the DNA sequence. Understanding the role of transcription factors helps debunk the myth of total genetic control and moves the conversation away from the hype of constantly flipping genetic switches.
From Columbia University alumni built in San Francisco
"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."
"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
From Columbia University alumni built in San Francisco
