Sex

Kate Lister: "If a man had migraines, cramps and pain five days a month, it would make sense to take time off work"

The British historian publishes in Spain 'A curious history of sex', which includes a chapter on menstruation when Spain debates its possible sick leave.

"It's positive because it forces us to talk about it," he says.

Camellia sanitary napkin advertisement from 1966.