Ka cika wannan jumla: Nazarin da masanin ilimin ɗan adam Barry Bogin da abokan aikinsa suka yi game da yara Maya na Guatemala da ke zaune a Amirka ya nuna yadda yanayin ke shafan tsawon mutum. A farkon shekarun 1970, lokacin da Bogin ya fara ziyartar Guatemala, ya lura cewa mazajen Indiyawan Maya suna da matsakaicin tsayi kuma mata suna da matsakaicin. Bogin ya dauki wani jerin ma'aunai bayan da
Yaƙin basasa na Guatemala, lokacin da kusan 'yan Guatemala miliyan suka gudu zuwa Amurka. Ya gano cewa 'yan gudun hijirar Maya, wadanda shekarunsu suka kama daga shida zuwa goma sha biyu, sun fi tsayi fiye da takwarorinsu na Guatemala. A shekara ta 2000, Mayawan Amurka sun fi Mayawan Guatemala girma a daidai wannan shekarun, galibi saboda ingantaccen abinci mai gina jiki da kiwon lafiya. Bogin ya kuma lura cewa yaran Maya na Amurka suna da ƙafafu masu tsayi, matsakaici fiye da Maya na Guatemala (rabo mafi ƙarancin tsayin zama).