Little differences make a big difference

Little differences make a big difference

To contribute to a better world, you need an idea worth solving. Some of this is about, to quote Edison, looking for what the world needs and then inventing it. To allow your idea to flourish, you also need it to be used. The other part is about how best to free your idea to improve the world.

Newly married, naive and educated, a villager in a traditional rural Indian area, Arunachalam was appalled to find his wife using cloth rags instead of sanitary towels. He discovered his wife, like other women in India, prioritised food for the family rather than her personal health.

The UN estimates that only 12% of Indian women use sanitary pads, while 70% of reproductive ...

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