 Idi ni pe iwadi kan fihan pe, awọn to maa n jẹun alẹ ki aago mẹsan alẹ to o lu, tabi o kere tan, wakati meji ki wọn to o sun lalẹ, ni anfaani ida ogun, lati maa ni aisan jẹjẹrẹ ọyan ati jẹjẹrẹ ile itọ ọkunrin, ju awọn to maa n jẹun alẹ ti wọn lẹyin aago mẹwa tabi awọn to maa n sun loju ẹsẹ ti wọn jẹun tan. 