Ubushakashatsi bushya bwagaragaje ko kunywa ikawa nyinshi bishobora kuba bifitanye isano n’uko umuntu agira amavuta make yo mu nda ndetse n’imitsi myinshi. Ibi byagaragajwe mu bushakashatsi bwasesenguye mu buryo burambuye isano iri hagati y’ingano y’ikawa umuntu anywa n’imiterere y’umubiri we. Abashakashatsi bibanze ku bipimo bitandukanye by’umubiri kugira ngo basobanukirwe neza niba hari itandukaniro rishobora kuba hagati y’abantu banywa ikawa nyinshi n’abayinywa nke.
By’umwihariko, ubushakashatsi bwibanze ku mavuta yibitse imbere mu nda (visceral fat) ari yo mavuta yibika imbere mu nda, hafi y’ingingo z’ingenzi nk’umwijima, amara n’izindi ngingo. Ubu bwoko bw’amavuta butandukanye n’amavuta aba munsi y’uruhu, kuko iyo ari menshi bushobora kugira uruhare mu kongera ibyago by’indwara zidakira. Kugira amavuta menshi yo mu nda bifitanye isano n’ibibazo birimo diyabete yo mu bwoko bwa kabiri, indwara z’umutima n’ibindi bibazo by’imikorere y’umubiri.
Abashakashatsi basanze abantu banywa ikawa nyinshi bari bafite, muri rusange, urugero ruto rw’amavuta yo mu nda ndetse n’ingano y’imitsi yari hejuru ugereranyije n’abanywaga ikawa nke. Ibi byatumye abashakashatsi bagaragaza ko bishobora kuba hari isano hagati yo kunywa ikawa n’imiterere y’umubiri. Nyamara, ni ngombwa kumenya ko ubu bushakashatsi bugaragaza isano, ntibuhamye ko kunywa ikawa ari byo bitera umuntu gutakaza amavuta yo mu nda cyangwa kongera imitsi.
Kimwe mu bintu by’ingenzi bigize ikawa ni kafeyine (caffeine), ikinyabutabire kizwiho kugira uruhare mu kongera kuba maso no gutanga imbaraga mu gihe gito. Kafeyine ishobora kandi kugira ingaruka ku mikorere y’umubiri no ku buryo umubiri ukoresha ingufu. Ariko kandi, ingaruka zayo zishobora gutandukana bitewe n’umuntu, ingano y’ikawa anywa, igihe ayinywera ndetse n’ibindi biribwa n’ibinyobwa afata.
Nubwo ibisubizo by’ubu bushakashatsi bishobora gushimisha abakunda ikawa, ntibikwiye gutuma abantu batangira kuyinywa ku bwinshi bagamije kugabanya amavuta yo mu nda cyangwa kongera imitsi. Ikawa ishobora kuba irimo isukari nyinshi, amavuta cyangwa izindi nyongeramusaruro bitewe n’uko iteguwe, bikaba bishobora kongera ingufu umuntu afata. Ni yo mpamvu ari ngombwa kureba muri rusange imirire umuntu afite aho kwibanda ku kinyobwa kimwe gusa.
Abahanga mu by’ubuzima bakomeza gushimangira ko kugira umubiri muzima bisaba guhuza imirire iboneye, imyitozo ngororamubiri ihoraho, gusinzira bihagije no kwirinda ingeso zishobora kugira ingaruka mbi ku buzima. Ku muntu usanzwe anywa ikawa, ubushakashatsi nk’ubu bushobora gutanga amakuru ashimishije ku ngaruka zishobora kuba zijyanye n’iyo ngeso, ariko ntibusimbura inama z’abaganga cyangwa iz’abashinzwe imirire. Ubushakashatsi bwimbitse buracyakenewe kugira ngo hamenyekane neza uburyo ikawa ishobora kugira uruhare ku mavuta yo mu nda n’imitsi.
