Our First Past the Post voting system, and the safe seats it creates, limits the opportunites for new blood to enter politcs.
Women won the right to stand for election to Parliament in 1918, yet in 356 constituencies a woman has never been elected.
Just 364 women have ever sat in the House of Commons; a mere 7.4 per cent of all those that have been elected to the House. Great swathes of the country remain no-go areas for women in politics.
Where no woman has gone before: female representation 1918-2010