Menopause and ageing are closely linked, because the drop in ovarian hormones accelerates several processes in the body. Presented at the 2026 Healthy Longevity course in Singapore (NUS), the question of hormone replacement therapy (HRT) is back in the spotlight. Can it really help you age better? Here is what recent scientific data say.
Understanding the link between menopause and ageing
The average age of natural menopause is 48.8 years worldwide (range 45-55 years), with little geographical variation (Davis, Nat Rev Endo 2022). About 75% of women experience symptoms. Menopause is defined as the permanent cessation of periods linked to the loss of ovarian follicular activity and the lasting decline in estrogens.
Vasomotor symptoms (hot flushes, night sweats) can start up to ten years before periods stop and last more than ten years. Added to these are an increase in cardiovascular risk, an altered lipid profile and joint pain. Above all, ovarian ageing contributes to the ageing of the whole body (Rabinovici, Aging Dis 2025).
Menopause, ageing and epigenetic age
One striking point concerns epigenetic age. A large analysis (Simonson, 29 studies, N = 550,550) shows that menopause occurring one year earlier is associated with accelerated biological age: +0.60 months on the Horvath1Age and PhenoAge clocks, and +0.96 months on GrimAge. In other words, the age at menopause is negatively associated with epigenetic age acceleration, while the number of pregnancies is positively associated with it.
Early menopause illustrates this issue well: it reduces the risk of breast cancer, but increases early osteoporosis, cardiovascular disease and premature mortality.
The benefits of HRT, system by system
According to Rabinovici's review (Ageing Dis 2025), HRT acts on several organs when it is started early:
- Bone: around 34% fewer vertebral and hip fractures; transdermal estrogen is safer. It is a strong response to osteoporosis.
- Heart and arteries: slower progression of atherosclerosis, fewer coronary events and lower all-cause mortality when started early.
- Sleep: 17β-estradiol improves sleep quality, micronised progesterone shortens the time to fall asleep.
- Memory: improved verbal and working memory when HRT is started early.
- Sexual health: reduction of the genitourinary syndrome of menopause, better lubrication and elasticity.
The window of intervention is decisive
The key word is timing. The cardiovascular and metabolic benefits of HRT appear mainly when it is started in perimenopause or within the ten years following menopause. Early initiation would even be cost-effective (USD 2,438 per QALY) and would bring around 1.5 additional years of healthy life.
The risks must nonetheless be recalled. WHI-type data (mean age 63.3 years) show, with the estrogen + progestin combination, a 26% increase in invasive breast cancers (38 versus 30 per 10,000 person-years), but also a 37% decrease in colorectal cancer.
Menopause, ageing and day-to-day prevention
HRT remains a medicine: it must be discussed with a doctor, weighing benefits and risks for each individual profile. In practice, this transition period is also the one in which movement matters most: strength training and weight-bearing activity protect bone and balance, complementing the hormonal action against osteoporosis.
In conclusion, understanding the link between menopause and ageing makes it possible to act early. Whether through medically supervised HRT or through lifestyle, the window of the first post-menopausal years is a precious opportunity to protect bones, heart and brain.
