Everyone，it seems，has a health problem. After pouring billions into the National Health Service，British people moan about dirty hospitals，long waits and wasted money. In Germany the new chancellor, Angela Merkel, is under fire for suggesting changing the financing of its health system. Canada’s new Conservative Prime Minister, Stephen Harper, made a big fuss during the election about reducing the country’s lengthy medical queues. Across the rich world, affluence, ageing and advancing technology are driving up health spending faster than income.
Health problems mentioned in the passage include all the following EXCEPT_________.