71% of Flo app users surveyed in 158 countries recognised hot flashes as a sign of perimenopause. Fatigue was the symptom women aged 35 and over reported most (83%), yet only 64% recognised it.

The other side A quota-sampled survey in Wales found 92% recognised hot flushes as a menopause symptom, so the answer depends a lot on who is asked and how. Sharp et al., Int J Environ Res Public Health, 2025