Ucwaningo lwakamuva nokuhlaziywa kwe-Framingham Heart Study eyingqopha-mlando ngabacwaningi base-Vanderbilt University Medical Center baphakamisa ukuthi ingozi yomdlavuza wamaphaphu inyuke kakhulu phakathi neminyaka engu-5 yokuyeka ukubhema. I-World No Tobacco Day igujwe emhlabeni wonke, kubhekwa imiphumela emibi yokubhema. Ngokuphawulekayo, ukubhema kuthinta cishe zonke izinhlobo eziyi-100 zomdlavuza kubantu. INational Heart, Lung, and Blood Institute isekele lolu cwaningo, olube nesandla ekuhlonzeni umfutho wegazi ophakeme kanye ne-cholesterol ephezulu njengezici ezinkulu ezibeka engcupheni yezifo zenhliziyo. Kodwa futhi yalandelela imiphumela yomdlavuza.
Ucwaningo lwamanje lubheke ababambiqhaza abangu-8,907 ababelandelwe iminyaka engu-25 kuya kwengu-34. Phakathi nalesi sikhathi, kwatholakala ukuthi kunomdlavuza wamaphaphu angu-284, cishe amaphesenti angu-93 awo atholakala kubantu ababhema kakhulu, labo ababebheme okungenani iphakethe likagwayi ngosuku iminyaka engu-21 noma ngaphezulu. Eminyakeni emihlanu ngemva kokuyeka, ingozi yokuba nomdlavuza wamaphaphu kulabo ababebhema kakhulu yehla ngamaphesenti angu-39 uma iqhathaniswa nababhemayo bamanje, futhi yaqhubeka yehla njengoba isikhathi siqhubeka. Nokho ngisho neminyaka engama-25 ngemva kokuyeka, umdlavuza wabo wamaphaphu ingozi yahlala iphakeme ngokuphindwe kathathu uma iqhathaniswa nabantu owayengakaze abheme.
Ngethemba ukuthi lolu cwaningo olusha lugqugquzela abantu ukuthi bayeke ukubhema ngokushesha ngangokunokwenzeka. Asihlanganeni sizibophezele ngalolu suku lomhlaba lokungabhenywa kukagwayi sokufundisa ababhemayo ngemiphumela emibi yokubhema.
