Japan’s first female prime minister, Sanae Takaichi, secured her party’s nomination by vowing to “work like a horse”. Since taking office on October 21, she has kept her word – but her relentless workload is raising questions about her health. Takaichi arrived at her office at 3am on Friday to prepare for her first parliamentary debate, a budget committee hearing that was due to convene at 9am. Even by Japan’s workaholic standards, such an early start raised eyebrows. “My jaw dropped when I...