Masana kimiyyar Rasha sun gudanar da bincike, lokacin da fa'idodin fa'ida da cutar da kai ga wadanda suka wuce haddi jikin jikin mutum ana koyo. Akasin matsalar, ya juya cewa a wasu yanayi, jikin cikakken mutane ya karu kariya daga tasirin masu haɗari masu haɗari.
Matsayin farawa shine aikin kimiyya da ake kira "yanayin yanayi da lafiya: kimantawa, masu nuna alama, da suka gabata kuma saboda tsananin zafi na bazara wanda ke da wuri a cikin 2010. Tun daga wannan lokacin, bayanan bayanan masu binciken an inganta shi a shekara kuma an gama amfani da sabon sakamakon gwaji da lissafin lissafi. A lokacin su, ya juya cewa kasancewar wuce haddi jikin ba wani abu ne na sakamako mai kyau ko matsalolin zuciya lokacin da aka fallasa shi da matsanancin yanayin zafi. A akasin wannan, kamar yadda aka tabbatar da yawa na bayanan kimiyya, nauyin jiki da ingancin kariya daga jikin mutum yana da kyakkyawar alaƙa ta juna. Irin wannan agogon yana haifar da aikin fatalin fatalin a matsayin mai ɗaukar kaya wanda ke kare gabobin ciki daga matsanancin zafi.
An lura da cewa mai nuna alama na takamaiman yanayin kyallen takarda yana da ƙarancin ƙwayoyin cuta na jikin mutum, kuma wannan yana haifar da nasarar da ke cikin jikin mutum, kuma wannan yana haifar da nasarar da ke cikin jikin mutum mai wuce gona da iri. Abin da ya sa masana suka ce, Mutanen Obnese suna da ban sha'awa da yawa ga matsanancin zafi. Koyaya, bai kamata a manta da shi ba, idan yawan zafin jiki ya wuce, irin wannan sigar na fata na asarar da zafin rana da kuma haɗuwa a kowane ɓangare na taro fiye da cika.
Bugu da kari, masana kimiyya sun tuno cewa bayyanar da yanayin zafi yana da alaƙa da mummunan sakamako, huhu da cuta, da kuma cututtukan fata, kuma suna iya shafar bacci da ke ciki. A lokaci guda, a cewar kwararru, a karkashin "zafi" yana nufin kasancewar mutane uku ko fiye a jere tare da matsakaita na yau da haka da 23 digiri Celsius.