OPINION - After the Jason Grant furore, women should have final say on their cycles. Period.

The pain of an uninvited guest arriving unannounced and sticking around is a problem anyone can understand. Now imagine that person entered your home, spiked your food with depressants, kicked you in the stomach, causing internal (and external) bleeding – and then told you to go to work tomorrow. That’s my not-so-subtle analogy of the menstrual cycle, for which Londoners pay a hefty cost with the highest proportion of girls facing period poverty.