01 · THE BASICS
New questions. A useful place to start.
Perimenopause is the transition leading up to menopause. Hormone levels can fluctuate, and changes in periods, sleep, or temperature may show up differently for each woman.
- Your experience does not need to look like anyone else’s.
- A symptom can have more than one cause. A clinician can help you sort it out.
- Write down what changed, when it began, and how it affects your day.
Source: U.S. Office on Women’s Health · Menopause basics. Reviewed October 2026.





