Ka taƙaita labarin:  Da yawa cikinmu za mu iya ganin cewa mun tsufa, kuma za mu yi kama da tsofaffi. Amma shekarunmu na zahiri - wanda zai iya bambanta sosai da ainihin shekarunmu - sau da yawa ya zama asiri. Yanzu masana kimiyya sun ce za su iya sanin ainihin shekarun mutum ta wajen yin amfani da na'urar daukar hotan takardu na 3D don duba kuraje da kuma wasu fasalolin fuska. Masana kimiyya sun ce sun gano wata hanya ta gano wannan shekarun ta hanyar kirkirar hoton fuska na 3D. Wadannan hotunan 3D sun hada da gungun fuskokin maza guda biyu, suna nuna matsakaicin tsarin fuska ga kowane rukuni na shekaru. Hoto na hagu yana nuna matsakaicin mutum mai shekaru 17-29, kuma na dama 60-77 mai shekaru. Faɗin bakin, faɗin hanci da tazara tsakanin bakin da hanci suna ƙaruwa da shekaru, yayin da kusurwoyin idanu suka fara sauka. Fuskokin matasa sun fi santsi da kuma siriri, yayin da mutanen da fuskokinsu suka tsufa suke da kitse da yawa da kuma kumatu, da kuma fatar fata. Sun kuma gano alamu a cikin jinin mutane da ke da alaƙa da alamun tsufa da ke bayyana a fuskokin mutane. Alal misali, matan da fuskokinsu suka yi tsufa, suna da yawan ƙwayar cholesterol mai "munana", in ji binciken. Maza tsofaffi fuska sau da yawa suna da ƙananan matakan albumin a cikin samfurin jini, furotin da aka samo a cikin jini. Jing-Dong Han da abokan aikinsa a Kwalejin Kimiyya ta Sin sun tattara hotuna 3D na Sinawa 332 masu shekaru tsakanin 17 zuwa 77 ta amfani da kyamarar da ake kira 3dMDface System. Ta amfani da bayanan, marubutan sun kirkiro taswirar fuskar mutum mai tsufa kuma sun sami damar haɓaka hanyar gano tsarin tsufa dangane da wasu siffofin fuska. Dangane da binciken, faɗin baki, faɗin hanci da kuma tazara tsakanin baki da hanci suna ƙaruwa tare da tsufa, yayin da kusurwoyin idanu suka fara sauka. Fuskokin matasa sun fi santsi da kuma siriri, yayin da mutanen da fuskokinsu suka tsufa suke da kitse da yawa da kuma kumatu, da kuma fatar fata. Sun kuma gano alamu a cikin jinin mutane da ke da alaƙa da alamun tsufa da ke bayyana a fuskokin mutane. Mata da tsofaffin fuska, alal misali, sun kasance suna da matakan cholesterol'mara kyau', da...
Masana kimiyya sun duba fuskokin Sinawa 332 masu shekaru tsakanin 17 zuwa 77. Sun sami damar gano tsarin tsufa bisa ga siffofin fuska daban-daban. Nose nisa da kuma nisa tsakanin baki da hanci ya karu da shekaru. Hanyar da aka yi amfani da ita wajen gano mutanen da suke tsufa cikin sauri.