Everything else on this site is about something you can feel. This one is about two things you cannot, which is exactly why it gets no attention and why it belongs on the list.
Bone and heart are the only items here with a clock attached. They make no noise while the damage is being done, and the window in which the work pays off best is roughly the one you are standing in.
The bone window
Bone is living tissue in constant turnover — being broken down and rebuilt continuously throughout your life. Estrogen restrains the breaking-down side of that. As estrogen falls, the restraint comes off, and the balance tips toward loss.
The critical point is that this is not spread evenly. The steepest decline is concentrated in the years immediately around the final period — roughly the year or two before and the several years after — and then it slows to a more gradual ongoing loss.
So the common assumption, which is that bone is a problem for later, gets it exactly backwards. The fastest part is now, and bone you protect through this stretch is bone you do not have to try to rebuild afterwards.
Nothing about this produces a symptom. Bone density is generally discovered either from a scan or from a fracture, and the fracture is a poor way to learn.
The heart window
Heart disease is the leading cause of death in women, which is not how it is talked about. It is also substantially under-recognised in women — under-diagnosed, under-investigated and under-treated relative to men, and women themselves consistently rank it below other risks.
Across the menopause transition, several things shift together:
- Cholesterol patterns change, typically for the worse
- Blood pressure tends to rise
- Body fat redistributes toward the abdomen, including the deeper fat around the organs
- Insulin sensitivity often worsens
- Blood vessels become stiffer
Some of this is ageing. A meaningful part of it tracks the menopause transition specifically rather than the calendar. The practical upshot is that the woman who at forty had unremarkable numbers may at forty-eight not, and nobody will mention it unless someone measures.
Worth knowing separately: women's heart attack symptoms are more often the ones people do not recognise — not the film version with crushing chest pain, but unusual exhaustion, shortness of breath, nausea, pain in the jaw, neck, back or arm, sometimes with no chest pain at all. That is a direct contributor to why women present later and do worse.
Also worth knowing, because it affects you now rather than in twenty years: certain pregnancy complications — pre-eclampsia, gestational diabetes, pre-term birth — are recognised markers of elevated later cardiovascular risk. If you had any of them, say so at your next appointment, however long ago it was. It is routinely not asked about and routinely not volunteered.
What actually works
The reason this page can be practical rather than merely worrying is that the interventions are well established and largely the same for both.
Lift heavy things, and lift heavier over time
This is the single most important item on the page.
Bone responds to load, and it responds to load that is genuinely demanding. Progressive resistance training — compound movements, weights heavy enough that the last few repetitions are hard, getting heavier across the weeks — is the strongest non-medical signal you can send your skeleton. It also builds the muscle that is otherwise leaving, improves insulin sensitivity, and improves balance, which is what actually prevents the fall that causes the fracture.
Light weights for high repetitions does not do this job. Neither does walking, and neither does swimming — both are genuinely good for other reasons and neither loads bone meaningfully.
Two to three sessions a week. Progressive. This is covered properly in the training article.
Add impact, deliberately
Bone responds to things that land. Short bouts of hopping, skipping, bounding, jumping or step-downs — thirty to fifty contacts, two or three times a week, takes a couple of minutes.
Build up gradually, especially if it has been years, and check with a clinician first if you have an existing bone diagnosis, a previous fragility fracture or significant joint problems. Otherwise it is a two-minute addition with a long payoff.
Balance work, because the fracture needs a fall
Standing on one leg while the kettle boils is not a joke. Falls are the mechanism by which low bone density becomes a broken hip, and balance is trainable at any age.
Protein, calcium and vitamin D
Bone is roughly half protein by volume, and the same 1.6 grams per kilogram of bodyweight that the body composition article recommends serves here too. Calcium from food where possible. Vitamin D is worth checking rather than guessing, particularly at higher latitudes — supplementation is appropriate for a lot of people and it is a conversation for a clinician rather than a page.
The cardiovascular basics, which are boring and decisive
Aerobic work most days — brisk walking counts here, and this is where it earns its place. Enough fibre. Less alcohol. Not smoking, which is far and away the largest modifiable risk factor and the one where stopping pays back fastest. Sleep, which affects blood pressure and glucose handling directly.
Get your numbers measured
You cannot manage what nobody has measured. Ask for blood pressure, a lipid panel and HbA1c. These are cheap, routine, and frequently not done for a woman in her forties who came in about something else.
Knowing your numbers at forty-five gives you a decade of runway. Finding out at fifty-eight gives you considerably less.
When to ask about a scan
Bone density scanning criteria vary by country and by risk profile, and whether you qualify is a clinical judgement. Factors that make it a reasonable question to raise include:
- Menopause before forty-five, or menopause induced by surgery or treatment
- A parent who fractured a hip
- A previous fracture from a fall from standing height or less
- Long-term steroid use
- A low body weight, or a history of significant under-eating or an eating disorder
- Smoking, or heavy alcohol use
- Coeliac disease, inflammatory bowel disease, rheumatoid arthritis or an overactive thyroid
- Loss of height, or a new stooped posture
Why this is the argument for doing the work now
Every other article on this site describes something that eventually settles. Hot flashes ease. Sleep improves. The rage subsides. The transition ends.
These two do not work like that. What happens to your bone and your arteries across these years is cumulative, and it sets the terms for the twenty or thirty years afterwards — whether you are the woman who breaks a wrist and recovers or the one who breaks a hip and does not fully, whether your sixties are spent doing things or managing conditions.
The work is the same work that helps everything else: lift heavy things, eat enough protein, sleep, walk, drink less. It is not a separate programme. It is the same programme, and this is the section that explains why it is worth doing on the days when nothing feels like it is changing.
Nothing here is urgent this week. All of it is urgent this decade.