| Geno
|
Mag
|
Summary
|
| (A;A)
|
2.5
|
More fragmented sleep (no particular negative consequences)
|
| (A;G)
|
2
|
Sleep might be more fragmented (no particular negative consequences)
|
| (G;G)
|
0
|
common/normal
|
rs2279381, also known as c.502C>T, p.Thr61Met and T61M, represents a variant in the FABP7 gene on chromosome 6.
A 2017 study of ~300 Japanese adult males monitored for a week found that the 10% carrying a variant rs2279381(A) allele exhibited more fragmented sleep than non-carriers. Specifically, although total amount of sleep was the same, carriers had sleep cycle bouts averaging 14 minutes compared to 18 minutes for non-carriers, and 27 bouts of sleep/wake vs 24 for non-carriers. No particular negative consequences were associated with the difference in sleep fragmentation.[PMID 28435883
]
]
