Reading on the web. Open in the Thier app for the full interactive version, progress tracking, and XP.

Open

Learn · Epigenetics

DNA Methylation Deep Dive

1-minute read 30 XP in app 6 cards

Methyl groups: tiny tags, huge impact

DNA methylation adds a small chemical group (CH₃) to cytosine bases in your DNA. This silences genes. As you age, methylation patterns change — some genes that should be silent turn on, and vice versa.

CH₃ methyl groups control gene expression

Try in app

Methylation lifestyle factors

Swipe left for factors that IMPROVE methylation patterns, right for those that WORSEN them.

This step is hands-on. Open the Thier app to try the full interaction.

Fact

The methylation cycle needs B vitamins + choline

Methyl groups don't appear from nowhere. The body's methylation engine runs on methionine → SAMe (the universal methyl donor) → homocysteine → back to methionine. The cycle requires folate (B9), B12, B6, riboflavin (B2), choline, and betaine. Deficiency in any of these — common with aging — disrupts the entire methylome. Eggs (choline), leafy greens (folate), and fish (B12) are the cheapest insurance.

5 nutrients the methylation-cycle dependencies

Tap to reveal

How fast can methylation change?

Tap each timeframe.

Tap each tile to reveal the detail.

True or false

True or False

Identical methylation patterns mean identical biological aging.

Two people with the same methylation patterns at clock sites will biologically age at exactly the same rate

Methylation is one major axis of epigenetic aging, but not the only one. Histone modifications, chromatin organisation, and non-coding RNAs also drive aging. Two people can match on a methylation clock but differ on rate-of-aging measures like DunedinPACE because the underlying biology is multi-dimensional.

Takeaway

Key Takeaway

Methylation is the language of epigenetic aging. Folate-rich foods, exercise, and good sleep maintain healthy methylation. Alcohol, smoking, and stress accelerate epigenetic aging.

Track your progress

Read the cards above, then mark this lesson complete to track your progress.

Open in app for XP

Up next