Ka cika wannan jumla: Rashin barci ya zama ruwan dare gama gari kuma yana iya kawo sakamako mai tsanani ga waɗanda abin ya shafa da kuma tattalin arziki da kuma wasu sakamako ga jama'a. Hukumar Tsaro ta Kasa ta Amurka, a cewar Dr. Charles Czeisler, memba na Cibiyar Magunguna kuma Daraktan Ma'aikatar Kula da Magunguna ta Jami'ar Harvard a Brigham da Asibitin Mata, ya gano cewa babban dalilin (31%) na mutuwar-zuwa-mai tuki da manyan motoci masu haɗari yana da gajiya (duk da cewa ba a haɗa kai tsaye da rikicewar barci ba, kamar su barci barci), tare da kwayoyi da barasa a matsayin lamba biyu (29%). Rashin bacci ma ya kasance muhimmiyar mahimmanci a cikin haɗari masu ban mamaki, irin su
Fitar da man fetur na Exxon Valdez, abubuwan da suka faru na nukiliya a Chernobyl da Three Mile Island da kuma fashewar jirgin saman sararin samaniya "Challenger".