Mutanen da ke ɗauke da bambance-bambancen kwayoyin halitta guda uku waɗanda aka gada daga Neanderthals sun fi damuwa da wasu nau'ikan ciwo, bisa ga sabon binciken (Communications Biology). Binciken na baya-bayan nan ya nuna yadda cudanya da Neanderthals da suka wuce ya yi tasiri ga kwayoyin halittar dan Adam na zamani. Masu binciken sun gano cewa mutanen da ke dauke da nau'o'in nau'in Neanderthal guda uku a cikin kwayar halitta SCN9A, wanda ke da alaka da ƙananan ƙwayoyin cuta, sun fi damuwa da zafi daga fata bayan bayyanar da man mustard.