Wahi a nā haʻawina he nui, ʻoi aku ka nui o ke kaumaha i nā wahine ma mua o nā kāne - ma 4 o 10 mau hihia me ka 1 i 10. ʻO ka mea mua, ma muli o nā ʻano physiological, a ʻo ka lua, ʻo nā meaʻai pōloli e alakaʻi pinepine i kēia.
ʻO ke kino, i ʻoki ʻia i loko o kahi papa hana meaʻai paʻa, ʻaʻohe mea e hana ai serotonin, ka mea i kapa ʻia ʻo "hormone of joy".
No nā wahine i ke koʻikoʻi, ʻōlelo ikaika ka poʻe meaʻai meaʻai e hoʻoponopono hou i ka papa kuhikuhi a hoʻohui i nā meaʻai i loaʻa ka amino acid tryptophan i ka ʻai i kēlā me kēia lā, kahi e hoʻohui ʻia ai ke serotonin.
Aia ka nui o ka tryptophan i loko. ʻOiaʻiʻo, pono e nānā ʻia ka nui o ka calorie o ka meaʻai - inā ʻaʻole e lilo nā ʻano "floated" i kumu ʻē aʻe no ka huhū.