Ivumbi rya Kava rishingiye ku muzi cyangwa ku giti cya Piper methysticum G.Forst, kandi ikintu nyamukuru gikora ni kava lactone. Urusenda rwa Kava ni igihuru kiramba cyo mu muryango w'urusenda. Mu bice bimwe na bimwe bya Afurika, divayi ikozwe mu muzi w'urusenda rwa Kava yitwa "Kava" (Kawax). Ni kimwe mu bimera bizwi cyane bikoreshwa mu kuvura imihangayiko kandi gifatwa nk'ikidatera uburozi cyangwa kidatera uburozi. Mu 1995, urusenda rwa kava rwabaye kimwe mu bimera 20 bigurishwa cyane mu Budage, ibikomoka kuri kava n'ibicuruzwa bigurishwa mu biribwa byinshi ku maduka y'iduka.
Kuki Kava yamamaye cyane?
Bitewe n'inyungu nyinshi za kava ku buzima, ikoreshwa ryayo mu nganda zikora imiti riri kwiyongera. Ubusanzwe ikoreshwa nk'inyongera y'ibimera ituza ishobora gufasha abantu guhangana n'ibibazo byo guhangayika no guhangayika. Habayeho impinduka ku isi kuva ku miti ikoze mu buhanga ikajya ku miti gakondo kuko ibimera bivugwa ko bifite umutekano kandi nta ngaruka mbi bigira. Bityo rero, ibicuruzwa bya Kava bivugwa ko birimo gukundwa nk'ikintu cy'ingenzi mu buzima bw'indyo mu bakora imiti n'abantu bazirikana ubuzima.
Bitewe n'uko iboneka cyane kandi ikaba yoroshye kuyikoresha, ifu y'umuzi wa kava yiganjemo isoko rikomeye ry'ifu y'umuzi wa kava. Akenshi inyobwa mu mazi ashyushye no mu kinyobwa mu buryo bw'icyayi. Irimo gukundwa cyane n'abantu nk'igisimbura icyayi gisanzwe kuko igira ibyishimo kandi idafite kafeyine, ishobora kubafasha guhangana n'imihangayiko. Ifu ikoreshwa cyane mu kwita ku buzima bwite no mu nyongeramusaruro.
Akamaro k'ikinyabutabire cya Kava ni akahe?
·Aguhangayika
Kimwe n'ibindi bintu bisanzwe bitera ububabare mu mitsi, harimo valerian, passionflower, balsam na lemon balm, urusenda rwa kava rugira ingaruka ku bintu bitera ububabare mu mitsi bya aside gamma-aminobutyric (GABA). GABA ni yo mashini igenzura imitsi mu bwonko igabanya umuvuduko w'ubwonko. Nubwo kava piperolactone ifatana na GABA receptors mu buryo budakomeye, isa nkaho yongera cyane uburyo ifatana n'izindi molekile. Bityo, kava piperolactone ishobora kongera imikorere ya GABA binyuze mu kongera uburyo izi molekile zifatana.
Ariko, itandukaniro rikomeye riri hagati y’urusenda rwa kava n’ibindi bintu bisanzwe bitera gutuza mu mitsi ni uko bigira ingaruka zikomeye ku miyoboro ya sodium irinda ingufu z’amashanyarazi (VGSC). VGSC ni umuyoboro ku ruhu rw’uturemangingo kandi ni ingenzi ku mikorere rusange y’imitsi. Iyo umuyoboro wa sodium ufunguye, ikimenyetso cy’amashanyarazi kinyura mu mitsi, bigatuma imitsi ihinduka. Kava perolactone isa nkaho ifunga imiyoboro ya sodium, ibi bigabanya imikorere y’ubwonko n’imitsi muri rusange. Ingaruka nk’izo hamwe no gufatana kwa molekyuli kuri GABA receptors bishobora kuba impamvu y’ingaruka zo kurwanya guhangayika za kava.
Akamaro k'ikinyabutabire cya Kava ni akahe?
·Kugabanya ububyimbirwenakurwanya amaraso mu mubiri
Mu ntangiriro za 1960, ubushakashatsi ku nyamaswa bwatangiye kwerekana ko iki cyatsi gifite ingaruka zikomeye ku kubyimba. Ubu bushakashatsi bwagaragaje ko urusenda rwa kava rushobora kugabanya ingaruka ku kubyimba guterwa no guhura n’ibintu byinshi bivanze n’imirasire ya UV.
Tumor necrosis factor-α (TNF-α) ni molecule ikomeye itera ibimenyetso by’uturemangingo tw’umubiri. Bimwe mu bipimo bisanzwe by’imiti ivura indwara ziterwa n’ubwiyongere bw’umubiri birimo kugenzura TNF-alpha. Kava lactones iri mu rusenda rwa kava isa nkaho igenzura TNF-α. Endotoxin ni ikintu kiba mu ruhu rw’inyuma rwa bagiteri zidafite gram-negative zitera cyane ingaruka z’ububyimbirwe. Nyuma yo guha imbeba dose y’ububyimbirwe bwica, urusenda rwa kava rwashoboye gukingira imbeba ingaruka z’ububyimbirwe ubusanzwe zashoboraga kwica.
Izi ngaruka zo kurwanya ububyimbirwe zisa nkaho zigabanya ingaruka zo kuvura kw'uturemangingo bitewe n'ingaruka zo kubyimbirwa. Izi ngaruka zisa nkaho zikora mu kugenzura inzira yo kubyimbirwa iterwa na aside arachidonic - ikinure gitera ububyimbirwe.
·Gushyigikira ibitotsi
Igerageza rimwe na rimwe ryagaragaje ko urusenda rwa kava rufasha mu kunoza ikibazo cyo kudasinzira. Inyigo y’igerageza yagaragaje ko uburyo bwombi bwo kuvura bwafashije. Urusenda rwa kava rushobora kugabanya stress no kudasinzira.
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