KATHMANDU, Feb. 15 -- Media reports of the practice of chhaupadi are full of harrowing tales of suffering, and women dying of cold or suffocation during their monthly exile to the cowshed.

A recent trip across eight districts in Nepal's Far West revealed a critical mass of women who are defying the practice and overcoming the superstitions that perpetuate it. Each of the women have a different reason for shunning the shed, but together they are breaking an entrenched taboo that has come to epitomise gender discrimination in Nepal.

In Achham, a 23-year old girl bravely decided to stay at home, even though her mother goes to the shed. On occasions when they menstruate together, the daughter cooks food inside and takes it out for her mother....