Izi zinatsimikiziridwa ndi asayansi ochokera ku Cornell University (USA) ndi Tampere University of Technology (Finland). Kwa chaka chonse, panali kusanthula deta pa kusintha kulemera kwa thupi pafupifupi 3000 okhala m'mayiko atatu - United States, Germany ndi Japan.
M'mayiko awa, maholide aatali monga maholide athu a Chaka Chatsopano (ndipo maphwando ochuluka kwambiri) amapezeka nthawi zosiyanasiyana. Ku United States, ndi Thanksgiving, yomwe imagwa kumapeto kwa Novembala, komanso Khrisimasi. Anthu a ku Germany amakondwerera Khirisimasi ndi phwando la Isitala. Ndipo maholide akulu aku Japan amagwa mchaka, ndiye kuti misonkhano yayitali kwambiri patebulo imachitika.
Inde, ndi pa maholide aatali omwe aliyense amadya kuchokera pamtima, palibe amene amawerengera zopatsa mphamvu, zomwe zikutanthauza kuti kulemera kwapachaka kumakhala kwakukulu - kuchokera ku 0,6% mpaka 0,8%. Pambuyo pa tchuthi, monga momwe kafukufuku wasonyezera, ambiri amapita ku zakudya, ndipo zimatenga pafupifupi miyezi isanu ndi umodzi kapena kuposerapo pang'ono kuti achepetse thupi. Poyerekeza kusinthasintha kwa kulemera ndi miyezi, asayansi apeza kuti ndi pakati pa autumn pamene iwo amene akufuna kuchepetsa thupi amapeza mawonekedwe awo abwino. Kuti muyambenso kuchira m'mwezi umodzi ...