rs324420(A;A)

Significantly increased risk for substance use disorders; possibly higher pain tolerance

Magnitude
2.5Worth knowing
Repute
Bad
Frequency
6%Average of 11 populations
On SNPedia
rs324420(A;A)
Gene
FAAH

Frequency

Share of people with A;A in each HapMap population.

  • Yoruba (Nigeria)16%
  • Luhya (Kenya)12%
  • Maasai (Kenya)7%
  • Gujarati Indian6%
  • African ancestry (Southwest US)5%
  • European ancestry (Utah)4%
  • Han Chinese (Beijing)4%
  • Mexican ancestry (Los Angeles)3%
  • Tuscan3%
  • Japanese (Tokyo)2%
  • Chinese (Denver)2%

Other genotypes of rs324420

  1. A;CNot ratednormalTypical · 0.035% of people
  2. C;CGoodnormalTypical · 0.059% of people

All about rs324420

Source and license

Adapted from rs324420(A;A) on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.

SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.