Ngaphandle nje
- Chaitra Navratri 2021: Umhla, iMuhurta, izithethe kunye nokubaluleka kwalo mnyhadala
- U-Hina Khan uyakhazimla phezulu nge-Copper Green Eye Shadow Kwaye i-Glossy Nude Lips Fumana ukuKhangela kumanyathelo ambalwa alula!
- I-Ugadi kunye ne-Baisakhi 2021: Spruce Jonga ukuHlala kwakho kunye neeCelebs-eziPhefumlelweyo zeSuti
- I-Horoscope yemihla ngemihla: 13 Epreli 2021
Ungaphoswa
- I-WHO ibongoza amazwe ukuba ayeke ukuthengisa izilwanyana zasendle ezibanjiweyo kwintengiso
- Ixabiso leGolide liwe ngokungekho xhala kwiiNBFCs, iibhanki kufuneka ziBukele
- Amatyala e-AGR kunye nefandesi yakutshanje yeSpectrum enokuthi ichaphazele icandelo leTelecom
- I-Yonex-Sunrise India ivule i-2021 iseti ngoMeyi, eza kubanjelwa ngasemva kweengcango ezivaliweyo
- UGudi Padwa 2021: UMadhuri Dixit ukhumbula ukubhiyozela uMnyhadala weAuspicious kunye nosapho lwakhe
- Mahindra Thar Ukubhukisha ukuwela i-50 000 Milestone kwiinyanga nje ezintandathu
- Isiphumo sokugqibela sama-2021 samapolisa e-Bihar Bihar
- Iindawo ezili-10 ezigqibeleleyo zokundwendwela eMaharashtra ngo-Epreli
Ikofu sesona siselo sidumileyo nesithandwa kakhulu ngaphandle kweti. Ukuxinana okuphezulu kwee-antioxidants kuyo kuyenza ibe yenye yezona ziselo zibalaseleyo [1] . Eli nqaku liza kuxubusha ngezibonelelo zekhofi emnyama ngaphandle kweswekile.
Ikofu iqulethe icaffeine, into evuselelayo yendalo eyaziwayo ukuba ikunike amandla amaninzi kwaye ikuncede uhlale uphaphile xa uziva udiniwe [Mbini] .
Yintoni ikofu emnyama?
Ikofu emnyama ikofu eqhelekileyo ngaphandle kweswekile, ukhilimu kunye nobisi. Oku kunyusa incasa yokwenene kunye nencasa yeembotyi zekofu ezityumkileyo. Ikofu emnyama yenziwe ngokwesiqhelo embizeni, kodwa iingcali zekofu zangoku zisebenzisa indlela yokugalela ngaphezulu yokwenza ikofu emnyama.
Ukongeza iswekile kwikofu yakho kuyingozi emzimbeni njengoko inxulunyaniswa neemeko ezinje ngeswekile kunye nokutyeba kakhulu [3] , [4] .
Ixabiso lesondlo seKofi
Iigrama ezili-100 zeembotyi zekofu ziqulethe i-520 kcal (calories) zamandla. Iqulethe
- 8.00 iigrem protein
- 26.00 gram iyonke lipid (fat)
- 62.00 iigram carbohydrate
- 6.0 gram iyonke ifayibha yokutya
- 52.00 iigrem iswekile
- I-calcium eyi-milligram ezili-160
- 5.40 milligrams intsimbi
- 150 milligrams isodiyam
- Iivithamini A ezingama-200 ze-IU
IziBonelelo zeMpilo zeKofi eNtsundu
1. Iphucula impilo yentliziyo
Ukusela ikofu ngaphandle kokongeza iswekile kunokuwanciphisa amathuba okuba nesifo sentliziyo kunye nokudumba, ngokwenza njalo kunciphise umngcipheko wesifo sentliziyo [5] . Izifundo zibonise ukuba ukusetyenziswa kwekofu kunciphisa umngcipheko wokubetha nge-20 pesenti [6] , [7] , [8] . Nangona kunjalo, ikofu inokubangela ukonyuka kancinci koxinzelelo lwegazi, okungabangeli ngxaki nangona.
2. Ukukhuthaza ukunciphisa umzimba
Ukutya ikofu engenashukela kunokukunceda utshise amanqatha ngokwandisa imetabolism yomzimba. I-Caffeine ibonakalisiwe ukuba iyanceda kwinkqubo yokutshisa amanqatha kwaye ibonakalisiwe ukuba inyusa umlinganiso we-metabolic nge-3 ukuya kwi-11 ipesenti [9] . Isifundo sibonise ukusebenza kwecaffeine kwinkqubo yokutshisa amanqatha kangange-10 pesenti kubantu abatyebe kakhulu kunye neepesenti ezingama-29 kubantu ababhityileyo [10] .
Ukuphucula imemori
Olunye uncedo lokusela ikofu engenaswekile kukuba iyanceda ekuphuculeni ukusebenza kwememori ngokunceda ingqondo ihlale isebenza. Oku kusebenze kwimithambo-luvo yengqondo kwaye kunciphisa amathuba esi sifo se-Alzheimer kunye nesifo sengqondo esixhalabisayo. Izifundo zibonise ukuba ukusela ikofu kunokwehlisa isifo se-Alzheimer ukuya kuthi ga kwiipesenti ezingama-65 [Shumi elinanye] , [12] .
4. Ukunciphisa umngcipheko wesifo seswekile
Ukusela ikofu kunye noshukela kwandisa umngcipheko wesifo seswekile, ngakumbi udidi lweswekile lwesibini. Olunye uphononongo lufumanise ukuba abantu abasela ikofu emnyama ngaphandle kweswekile banomngcipheko ophantsi wama-23 ukuya kuma-50 wepesenti wokufumana esi sifo [13] , [14] , [Shumi elinantlanu] . Abantu abaneswekile kufuneka bayiphephe ikofu egcwele iswekile nanjengoko bengakwazi ukufihla ngokwaneleyo i-insulin, kwaye ukusela ikofu eneswekile kubangela ukuba iswekile iqokeleleke egazini.
5. Yehlisa umngcipheko wesifo sika-Parkinson
NgokukaNjingalwazi u-Achmad Subagio weZiko loPhando kwiYunivesithi yaseJember, ukusela ikofu emnyama kabini ngemini kuthintela umngcipheko wesifo sika-Parkinson kuba icaffeine inyusa amanqanaba e-dopamine emzimbeni. Isifo sikaParkinson sichaphazela iiseli zemithambo-luvo ezivelisa i-dopamine, i-neurotransmitter ejongene nokudlulisa imiqondiso phakathi kweeseli zemithambo-luvo yengqondo.
Ke, ukusela ikofu engenaswekile kunokunciphisa umngcipheko wesifo sika-Parkinson ngama-32 ukuya kuma-60 epesenti [16] , [17] .
6. Ulwa uxinzelelo
Abasetyhini abasele ngaphezulu kweekomityi ezine zekofu ngemini, babenomngcipheko ophantsi wama-20 wepesenti wokudakumba. Isizathu sokuba yi-caffeine, into evuselelayo yendalo evuselela inkqubo ye-nervous system kunye nokwandisa amanqanaba e-dopamine [18] . Ukonyuka kwamanqanaba e-dopamine kususa iimpawu zoxinzelelo kunye noxinzelelo [19] . Kwaye ngenxa yoku aba bantu kunqabile ukuba bazibulale [Amashumi amabini] .
7. Isusa ityhefu kwisibindi
Ikofu emnyama iyaziwa nangokucoca isibindi ngokususa ityhefu kunye neebhaktiriya zomzimba ngomchamo. Ukwakhiwa kweetyhefu kwisibindi kunokukhokelela kumonakalo wesibindi. Kukwaziwa ngokuthintela ukuqina kwesibindi kunye nokunciphisa umngcipheko ukuya kuthi ga kwiipesenti ezingama-80 [amashumi amabini ananye] , [22] . Ukongeza, icaffeine isisifo esenza ukuba ufune ukuchama rhoqo.
8. Sisityebi kwii-antioxidants
Ikofu iphezulu kwii-antioxidants xa kuthelekiswa nezinye iziqhamo kunye nemifuno [2. 3] . Owona mthombo wee-antioxidants uvela kwiimbotyi zekofu kwaye izazinzulu zithi kukho malunga ne-1 000 antioxidants kwimbotyi zekofu ezingasetyenziswanga kwaye ngexesha lenkqubo yokosa, amakhulu ngakumbi ayaphuhlisa [24] .
9. Yenza ubukrelekrele
I-Caffeine sisikhuthazi sendalo esisebenza kwingqondo yakho ngokuthintela iziphumo ze-adenosine, isithintelo se-neurotransmitter [25] . Oku kunyusa ukudubula kwe-neuronal kwingqondo kwaye kukhuphe ezinye ii-neurotransmitters ezinje nge-norepinephrine kunye ne-dopamine ephucula imeko, inciphise uxinzelelo, inyuse ukubekeka esweni kunye nexesha lokuphendula kunye nokusebenza kwengqondo ngokubanzi [26] .
10. Yehlisa umngcipheko womhlaza
Ikofu emnyama inokuthintela umngcipheko wesifo somhlaza wesibindi kunye nekholon. Ukusela ikofu emnyama kunokunciphisa umngcipheko womhlaza wesibindi ngama-40 epesenti [27] . Olunye uphononongo lufumanise ukuba abantu abasela iikomityi zekofu ezi-4-5 ngemini babenomngcipheko omncinci wokuhlaselwa ngumhlaza wekolon ngeepesenti ezili-15 [28] . Ukusetyenziswa kwekofu kuyaziwa ukunciphisa umngcipheko womhlaza wolusu.
11. Ukuphucula ukusebenza komsebenzi
Ukusela ikofu emnyama kusasa kwandisa amanqanaba e-epinephrine (adrenaline) egazini ethi inyuse ukusebenza kwakho ngokomzimba nge-11 ukuya kwi-12 yepesenti. [29] , [30] . Oku kungenxa yomxholo wecaffeine onceda ekonakaleni nasetabolism amafutha aza kusetyenziswa njengamafutha. I-caffeine ikwathoba izihlunu emva kokuzilolonga.
12. Uthintela igawuthi
Igawuthi yenzeka xa kukho ulwakhiwo lwe-uric acid egazini. Uphononongo lufumanise ukuba ukusela ikomityi enye ukuya kwezintathu zekofu ngemini kwehlise umngcipheko wegawuthi ngeepesenti ezi-8, ukusela iikomityi ezine ukuya kwezintlanu kwehlisa umngcipheko wegawuthi ngeepesenti ezingama-40 nokusela iikomityi ezintandathu ngemini kwanciphisa umngcipheko ngama-60 [31] .
13. Yenza i-DNA yomelele
Ngokophando olupapashwe kwi-European Journal of Nutrition, abantu abasela ikofu bane-DNA eyomeleleyo njengoko yehlisa inqanaba lokophuka kwe-DNA strand kwiiseli ezimhlophe zegazi. [32] .
14. Ukhusela amazinyo
Abaphandi eBrazil bafumanise ukuba ikofu emnyama ibulala iintsholongwane emazinyweni kwaye ukongeza iswekile kwikofu kunciphisa isibonelelo. Ithintela ukubola kwamazinyo kwaye yaziwa ngokuthintela isifo se-periodontal [33] .
15. Uthintela umonakalo we-retina
Olunye uncedo lokusela ikofu emnyama ngaba luncedo ekuthinteleni ukonakala kwamehlo okwenzeka ngenxa yoxinzelelo lwe-oxidative. Ubukho be-chlorogenic acid (CLA), i-antioxidant eyomeleleyo efumaneka kwimbotyi yekofu, kuthintela ukonakala kwethambo [3. 4] .
Yandisa ixesha elide
Ngokophononongo, abasetyhini abatya ikofu banomngcipheko ophantsi wokufa sisifo sentliziyo, umhlaza, njl. Izifundo ezininzi zibonise ukuba iziselo zekofu zinomngcipheko omncinci wokufa ngaphambi kwexesha kwizifo ezinjengesifo seswekile, umhlaza kunye nesifo sentliziyo. [35] .
17. kuthintela ukuqina kwamathambo
I-Multiple sclerosis sisifo esivumela amajoni omzimba ahlasele inkqubo ye-nervous system. Uphando lubonisa ukuba ukusela iikomityi ezine zekofu ngemini kunokuyikhusela kwisifo sokuqina kwemithambo [36] .
Iziphumo ebezingalindelekanga zekofu emnyama
Njengoko ikofu iqulethe icaffeine, ukugqithisa kunokubangela uloyiko, ukungazinzi, ukulala, isicaphucaphu, isisu, ukonyuka kwentliziyo kunye nokuphefumla.
Uyenza njani iKofu emnyama
- Kwi-grinder yekhofi, gaya iimbotyi zekhofi ezintsha.
- Bilisa ikomityi yamanzi ngeketile.
- Beka isihluzo kwikomityi kwaye ungeze ikofu yomhlaba kuyo.
- Thela amanzi abilisiweyo kancinci phezu kwekofu yomhlaba.
- Susa isihluzo kwaye wonwabele ikofu yakho emnyama
Leliphi elona xesha lilungileyo lokusela ikofu emnyama?
Kuyacetyiswa ukuba usele ikofu emnyama kabini ngemini- kanye kusasa phakathi kwe-10 kusasa kunye nasemini kwaye kwakhona phakathi kwe-2 pm kunye ne-5 pm.
Jonga iZalathiso zeNqaku- [1]USvilaas, A., Sakhi, A. K., Andersen, L. F., Svilaas, T., Ström, E. C., Jacobs, D. R.,… Blomhoff, R. (2004). Ukufakwa kwee-Antioxidants kwiKofu, iwayini, kunye nemifuno zihambelana nePlasma Carotenoids ebantwini. Ijenali yeZondlo, i-134 (3), 562-567.
- [Mbini]UFerré, S. (2016). Iindlela zempembelelo zengqondo zecaffeine: iimpembelelo zokuphazamiseka kokusetyenziswa kweziyobisi. I-Psychopharmacology, 233 (10), 1963-19799.
- [3]UTappy, L., kunye noLê, K.-A. (2015). Iziphumo zeMpilo zeFructose kunye neFructose eziqulathe iiCaloric Sweeteners: Simi phi iminyaka eli-10 emva kokubethwa kweempempe zokuqala? Iingxelo zaNgoku zeSwekile, 15 (8).
- [4]UTouger-Decker, R., kunye no-van Loveren, C. (2003). Iswekile kunye namazinyo. Ijenali yaseMelika yoNyango lweKlinikhi, 78 (4), 881S-892S.
- [5]UJohnson, R. K., Appel, L. J., Brands, M., Howard, B. V., Lefevre, M.,… uLustig, R. H. (2009). Ukutya i-Sugars Ukutya kunye neMpilo ye-Cardiovascular Health: Ingxelo yeSayensi evela kwi-American Heart Association. Ukujikeleza, i-120 (11), i-1011-1020.
- [6]Kokubo, Y., Iso, H., Saito, I., Yamagishi, K., Yatsuya, H., Ishihara, J.,… Tsugane, S. (2013). Impembelelo yeTi eluhlaza kunye nokuSetyenziswa kweKofi kuMngcipheko oNcitshisiweyo weStroke Incidence kubemi baseJapan: Iziko laseJapan lezeMpilo lezeMpilo. Ukubetha, 44 (5), 1369-1374.
- [7]ILarsson, S. C., kunye ne-Orsini, N. (2011). Ukusetyenziswa kwekofu kunye nomngcipheko weStroke: I-Dose-Response Meta-Uhlalutyo lwezifundo ezinokwenzeka. Ijenali yaseMelika ye-Epidemiology, 174 (9), 993-11001.
- [8]I-Astrup, A., Toubro, S., Cannon, S., Hein, P., Breum, L., kunye neMadsen, J. (1990). I-Caffeine: Uphononongo olulawulwa kabini, olulawulwa yi-placebo lwe-thermogenic, metabolic, kunye nefuthe lentliziyo kumavolontiya asempilweni. Ijenali yaseMelika yoNyango lweKlinikhi, 51 (5), 759-767.
- [9]UDulloo, A. G., Geissler, C. A., Horton, T., Collins, A., kunye noMiller, D. S. (1989). Ukusetyenziswa kwesiqhelo kwe-caffeine: ifuthe kwi-thermogenesis kunye nenkcitho yamandla yemihla ngemihla kumavolontiya angabantu ababhityileyo nabasemva. Ijenali yaseMelika yoNyango lweKlinikhi, 49 (1), 44-50.
- [10]UAcheson, K. J., Gremaud, G., Meirim, I., Montigon, F., Krebs, Y., Fay, L. B.,… UTappy, L. (2004). Iziphumo zeMetabolic zecaffeine ebantwini: i-lipid oxidation okanye ibhayisekile engenamsebenzi? Ijenali yaseMelika yoNyango lweKlinikhi, 79 (1), 40-46.
- [Shumi elinanye]UMaia, L., & de Mendonca, A. (2002). Ngaba ukutya i-caffeine kuyakhusela kwisifo i-Alzheimer's? Ijenali yaseYurophu yeNeurology, 9 (4), 377-382.
- [12]ISantos, C., Costa, J., Santos, J., Vaz-Carneiro, A., kunye neLunet, N. (2010). Ukungeniswa kweCaffeine kunye neDementia: Uphengululo lwenkqubo kunye noVavanyo lweMeta. Ijenali yezifo ze-Alzheimer's, 20 (s1), S187-S204.
- [13]UVan Dieren, S., Uiterwaal, C. S. M., van der Schouw, Y.T., Van der A, D. L., uBoer, uJ. Ukusetyenziswa kwekofu kunye neti kunye nomngcipheko wohlobo lweswekile 2. Iswekile, 52 (12), 2561-2569.
- [14]Odegaard, A. O., Pereira, M. A., Koh, W.-P., Arakawa, K., Lee, H.-P., kunye no-Yu, M. C. (2008). Ikofu, iti, kunye nohlobo lwesigulo sesi-2 seswekile: Isifundo seMpilo saseTshayina saseTshayina. Ijenali yaseMelika yoNyango lweKlinikhi, 88 (4), 979-985.
- [Shumi elinantlanu]UZhang, Y., Lee, E.T, Cowan, L. D., Fabsitz, R. R., kunye noHoward, B. V. (2011). Ukusetyenziswa kwekofu kunye neziganeko zohlobo lweswekile 2 emadodeni nakwabafazi abanonyamezelo oluqhelekileyo lweswekile: Isifundo Esomeleleyo Sentliziyo. Isondlo, iMetabolism kunye neZifo zeentliziyo, 21 (6), 418-423.
- [16]Hu, G., Bidel, S., Jousilahti, P., Antikainen, R., kunye noTuomilehto, J. (2007). Ukusetyenziswa kwekofu kunye neti kunye nomngcipheko wesifo sikaParkinson. Ukuphazamiseka kwentshukumo, 22 (15), 2242-2248.
- [17]URoss, G. W., Abbott, R. D., Petrovitch, H., Morens, D. M., Grandinetti, A., Tung, K.H, ... kunye noPopper, J. S. (2000). Umbutho wekofu kunye ne-caffeine yokutya kunye nomngcipheko wesifo se-Parkinson. IJama, 283 (20), 2674-2679.
- [18]U-Lucas, M. (2011). Ikofu, iCaffeine, kunye nomngcipheko woxinzelelo phakathi kwabafazi. Oovimba abagcina amayeza angaphakathi, 171 (17), 1571.
- [19]Umanyano lweRUVID. (2013, Januwari 10). I-Dopamine ilawula inkuthazo yokwenza, imiboniso yokufunda. Inzululwazi imihla ngemihla. Ifunyenwe ngoJanuwari 16, 2019 kwi-www.sciencedaily.com/releases/2013/01/130110094415.htm
- [Amashumi amabini]Kawachi, I., Willett, W. C., Colditz, G. A., Stampfer, M. J., & Speizer, F. E. (1996). Isifundo esinokubakho sokusela ikofu kunye nokuzibulala kwabafazi. Oovimba abagcina amayeza angaphakathi, 156 (5), 521-525.
- [amashumi amabini ananye]UKlatsky, A. L., Morton, C., Udaltsova, N., kunye noFriedman, G. D. (2006). Ikofu, iCirrhosis, kunye neTransaminase Enzymes. Oovimba abagcina amayeza angaphakathi, 166 (11), 1190.
- [22]ICorrao, G., Zambon, A., Bagnardi, V., D'Amicis, A., kunye noKlatsky, A. (2001). Ikofu, iCaffeine, kunye nomngcipheko we-Liver Cirrhosis. Izibhengezo ze-Epidemiology, 11 (7), 458-465.
- [2. 3]USvilaas, A., Sakhi, A. K., Andersen, L. F., Svilaas, T., Ström, E. C., Jacobs, D. R.,… Blomhoff, R. (2004). Ukufakwa kwee-Antioxidants kwiKofu, iwayini, kunye nemifuno zihambelana nePlasma Carotenoids ebantwini. Ijenali yeZondlo, i-134 (3), 562-567.
- [24]UYashin, A., uYashin, Y., uWang, uJ.Y, kunye noNemzer, B. (2013). I-Antioxidant kunye ne-Antiradical Activity yeKofu. Antioxidants (iBasel, Swizalend), 2 (4), 230-45.
- [25]UFredholm, B. B. (1995). Adenosine, Adenosine Receptors kunye neZenzo zeCaffeine. I-Pharmacology kunye neToxicology, 76 (2), 93-101.
- [26]Owen, G.N, Parnell, H., De Bruin, E.A, kunye noRycroft, J. A. (2008). Iziphumo ezidibeneyo ze-L-theanine kunye ne-caffeine ekusebenzeni kwengqondo kunye nomoya. Isondlo Neuroscience, 11 (4), 193-198.
- [27]ILarsson, S. C., kunye neWolk, A. (2007). Ukusetyenziswa kwekofu kunye nobungozi bomhlaza wesibindi: Uhlalutyo lweMeta. I-Gastroenterology, 132 (5), 1740-1745.
- [28]USinha, R., Umnqamlezo, A., uDaniel, uC., UGraubard, uB., Wu, uJ. W., uHollenbeck, uA. R., u-Freedman, uN. D. (2012). Ikofu ene-caffeine kunye ne-decaffeinated ikofu kunye nokufakwa kweti kunye nomngcipheko womhlaza ongalunganga kwisifundo esikhulu esiza kubakho. Ijenali yaseMelika yoNyango lweKlinikhi, 96 (2), 374-381.
- [29]UAnderson, D. E., kunye neHickey, M. S. (1994). Iziphumo zecaffeine kwi-metabolic kunye ne-catecholamine iimpendulo zokuzivocavoca kwi-5 kunye ne-28 degrees C. Amayeza kunye nesayensi kwezemidlalo kunye nokuzilolonga, 26 (4), 453-458.
- [30]Doherty, M., & Smith, P. M. (2005). Iziphumo zokungenisa icaffeine kwinqanaba lokuzilolonga okubonakalayo ngexesha nasemva kokuzilolonga: uhlalutyo lweemeta. Ijenali yaseScandinavia yoNyango kunye neNzululwazi kwiMidlalo, 15 (2), 69-78.
- [31]Choi, H.K, Willett, W., & Curhan, G. (2007). Ukusetyenziswa kwekofu kunye nomngcipheko we-gout emadodeni: Isifundo esinokwenzeka. Isifo samathambo kunye neRheumatism, 56 (6), 2049-2055.
- [32]Bakuradze, T., Lang, R., Hofmann, T., Eisenbrand, G., Schipp, D., Galan, J., kunye noRichling, E. (2014). Ukusetyenziswa kwekofu emnyama eyosiweyo kunciphisa inqanaba lokophuka okuzenzekelayo kwe-DNA strand: ityala elilawulwa ngokungahleliwe. Ijenali yaseYurophu yeZondlo, i-54 (1), 149-156.
- [33]UAnila Namboodiripad, P., kunye noKori, S. (2009). Ngaba ikofu inokuthintela ii-caries? Ijenali yonyango lwamazinyo olondolozo: JCD, 12 (1), 17-21.
- [3. 4]UJang, H., Ahn, H. R., Jo, H., Kim, K.-A., Lee, E. H., Lee, K. W.,… Lee, C. Y. (2013). I-Chlorogenic Acid kunye neKofi zithintela i-Hypoxia-indened Retinal Degeneration. Ijenali yezoLimo kunye nokutya kweKhemistry, 62 (1), 182-191.
- [35]ILopez-Garcia, E. (2008). Ubudlelwane bokuSetyenziswa kwekofu kunye nokufa. Ii-Annals zoNyango lwaNgaphakathi, 148 (12), 904.
- [36]UHedström, A. K., Mowry, E. M., Gianfrancesco, M. A., Shao, X., Schaefer, C. A., Shen, L., ... kunye noAlfredsson, L. (2016). Ukusetyenziswa okuphezulu kwekofu kunxulunyaniswa nokuhla kweziphumo zomngcipheko we-sclerosis kwizifundo ezibini ezizimeleyo. J Neurolurosuroski yengqondo, 87 (5), 454-460.