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Gene Explorer / DEC2

DEC2

TraitFunEmerging evidenceBackground

A rare variant linked to needing noticeably less sleep than average.

DEC2 variants have been described in people who feel rested on roughly 4–6 hours of sleep. Most of us do not carry one - but when present, it is one of the clearest “genetics changed my daily life” examples out there.

Also known as: short sleeper, BHLHE41

Associated with

  • sleep
  • insomnia
  • circadian
  • short sleeper

Educational only. Significant findings should be reviewed with a clinician.

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Educational reference only — not a diagnosis. Discuss significant findings with a clinician.