BBC Tech Editor Zoe Kleinman was about to go live on TV to explain a global outage affecting dozens of websites and apps. Millions would be watching, but she kept forgetting a key technical phrase and had to resort to reading from notes. The ‘brain fog’ Zoe experienced coincided with perimenopause – the start of the menopause and time in life for women where hormone levels are changing. She wrote about the experience on social media, attracting thousands of views and hundreds of supportive comments. Zoe says that, at the time, she felt she had failed and her “professional pride had been dented.” We bring together Zoe with two women with similar experiences.