The missing piece is detection
Perimenopause is defined by hormonal change, yet medicine still identifies it by bleeding patterns and symptoms after the fact. Follicle-stimulating hormone begins rising about 6 years before the final period, and estradiol starts to fall about 2 years before it, with day-to-day fluctuations that a single blood test cannot capture.
Sources: reference 10, reference 11.
Falling and fluctuating estrogen alters the brain's temperature-regulating circuits, producing hot flashes. Hot flashes in turn carry vascular risk information beyond a single estradiol value, and the shape of each woman's hormone trajectory relates to the health of her arteries after menopause.
Today, the gap has 4 parts
01
Measurement
Routine care relies on single blood draws for a process that changes daily.
02
Interpretation
No validated thresholds link a woman's hormone trajectory to her cardiovascular risk.
03
Timing
By the time cycle changes or symptoms are obvious, lipids and arteries may already be changing.
04
Integration
Hormonal data rarely reach the cardiologist, and cardiovascular data rarely reach the gynecologist.