Yaya aka tsara fatar?
Idan aka yi la'akari da tsarin fata sosai, za a ga cewa akwai layuka uku daban-daban:
1. epidermis，
2. fatar jiki da kuma
3. Layer na ƙarƙashin ƙasa.
Fatar jiki tana sama da layin ƙasa kuma a zahiri tana ƙunshe da zare mai laushi, waɗanda aka haɗa su a kusurwa da kuma a kwance, suna ba ta ƙarfi mai yawa. Jijiyoyin jini suna ƙarewa a cikin fatar jiki, yayin da gumi da glandar sebaceous da kuma gashin gashi suma suna nan.
Layin ƙwayoyin halitta na asali yana cikin epidermis a lokacin da ake sauyawa tsakaninsa da fata. Wannan layin koyaushe yana samar da sabbin ƙwayoyin halitta, waɗanda daga nan suke motsawa sama, suna lanƙwasa, suna zama masu tsari kuma daga ƙarshe suna raguwa.
Menene Tanning?
Yawancinmu muna fuskantar yin amfani da rana a matsayin wani abu mai daɗi. Dumi da annashuwa suna ba mu jin daɗin rayuwa. Amma me ke faruwa a zahiri a fata?
Haskokin rana suna shafar launin melanin a cikin epidermis. Waɗannan suna duhu ta hanyar hasken UVA a cikin haske. Ana samar da launin melanin ta hanyar ƙwayoyin halitta na musamman da ke kwance a cikin tsarin fata da ake kira melanocytes sannan su motsa tare da ƙwayoyin da ke kewaye zuwa saman. Haskokin duhu suna shanye wani ɓangare na hasken rana don haka suna kare zurfin yadudduka na fata.
Tsarin hasken rana na UVB yana shiga cikin fata sosai kuma yana aiki akan melano-cytes ɗin kansu. Sannan ana motsa su don samar da ƙarin launuka: don haka suna samar da tushe don yin launin ruwan kasa mai kyau. A lokaci guda, hasken UVB yana sa layin ƙaho (callus) ya yi kauri. Wannan layin mai kauri yana taimakawa wajen kare fata.
Waɗanne sauran tasirin rana ke da shi fiye da yin tanning?
Tasirin kwantar da hankali na yin wankan rana ba wai kawai ya samo asali ne daga ɗumi da annashuwa da ake samu ba, har ma da tasirin haske mai ƙarfi; kowa ya san kyakkyawan yanayi da rana mai rana ta bazara za ta iya kawowa.
Bugu da ƙari, ƙananan allurai na UVB suna haɓaka hanyoyin metabolic kuma suna ƙarfafa samuwar Vitamin D3.
Saboda haka rana tana haifar da tarin sakamako masu kyau:
1. ƙara kuzarin jiki
2. ƙarfafa tsaron jiki
3. inganta yanayin kwararar jini
4. inganta samar da iskar oxygen ga kyallen jiki
5. Amfanin ma'adinai ta hanyar ingantaccen samar da sinadarin calcium
6. rigakafin cututtukan ƙashi (misali osteoporosis, osteomalacia)
Kumburin rana alama ce ta tabbatar da cewa fatar ta yi yawa, don haka dole ne a guji ta ko ta halin kaka.
Menene hasken rana?
Haske - musamman hasken rana - tushen kuzari ne wanda rayuwa ba za a iya tunanin ta ba tare da shi. Ilimin kimiyyar lissafi ya bayyana haske a matsayin hasken lantarki - kamar raƙuman rediyo amma a wani mita daban. Hasken rana ya ƙunshi nau'ikan mitoci daban-daban waɗanda za mu iya gani ta amfani da prism, je launukan bakan gizo. Amma bakan ba ya ƙarewa da ja da shuɗi. Bayan ja ya zo da infra-red, wanda muke fuskanta a matsayin ɗumi, bayan shuɗi da shuɗi ya zo da hasken ultraviolet, wanda ke haifar da launin fata.
Yin rana a waje ko a cikin solarium - akwai bambanci?
Hasken rana, ko daga ramin bango ne ko kuma daga sama, abu ɗaya ne ainihinsa. Babu wani abu kamar "hasken wucin gadi" a ma'anar cewa ya bambanta da hasken rana. Duk da haka, wata babbar fa'ida ta gadajen rana ita ce ana iya daidaita sassan bakan daidai gwargwado daidai da buƙatun mai amfani. Bugu da ƙari, babu gajimare da za su toshe rana a kan gadon rana don haka koyaushe ana tantance adadin cam ɗin da aka ɗauka daidai. Yana da mahimmanci a tabbatar da cewa fata ba ta cika da yawa ba a waje da kuma a kan gadon rana.
Tanning ba tare da ƙonewa ba - ta yaya hakan ke aiki?
Hasken rana, ban da tasirin tanning da ake so, yana iya haifar da ja mara kyau ga fata, erythema - a cikin sa
Mafi muni, ƙonewar rana. Ga wanka na rana sau ɗaya, lokacin da ake buƙata don yin tanning ya fi wanda ake buƙata don yin ja a fata.
Duk da haka, ana iya samun kyakkyawan launin fata, ba tare da ƙonewa ba - kawai ta hanyar yin amfani da rana akai-akai. Dalilin haka shi ne jiki yana rage matakan farko na jajayen fata da sauri, yayin da launin fata ke ƙaruwa koyaushe ta hanyar fallasa shi akai-akai.
A kan gadon rana, an san ainihin ƙarfin hasken UV. Saboda haka, ana iya daidaita tsarin tanning don tabbatar da cewa mutum ya tsaya kafin ya fara ƙonewa, sannan kuma a sake samun kyakkyawan tanning ta hanyar fallasa shi akai-akai.