Your Body in Your 70s: What Changes, What to Do About It

The honest verdict on this decade

Your seventies are the decade where the risks stop being about hormones and start being about structure — bone, muscle, balance, arteries, and the brain. Two numbers frame it. Falls are now the leading cause of injury death in adults 65 and older, and the fall death rate is rising, not falling: the CDC reports an age-adjusted rate of 78.4 deaths per 100,000 older adults in 2024, up 21% from 2018. And heart disease remains the number one killer of women overall, responsible for about 1 in 5 female deaths.

But this is not a decade of inevitability. The interventions that work here are unglamorous and extremely effective: lifting something heavy twice a week, getting your blood pressure to target, getting a bone density scan, getting your hearing tested, and getting somebody to look at the full list of pills you take. Most of what threatens you in your seventies is modifiable. Very little of it is fixed by a supplement.

Bone: fracture is now the main event

Bone loss accelerated sharply in the first five to ten years after menopause. By your seventies the rate of loss has slowed, but you are drawing down from a smaller reserve — and the consequences have grown teeth. Hip fracture is overwhelmingly a woman's injury: annual incidence in the U.S. runs roughly 511–553 per 100,000 in women versus 197–201 per 100,000 in men — about three in four hip fractures. And the published one-year mortality after a hip fracture is between 18% and 31%. Among survivors, function often does not come back: a substantial share never walk independently again, and many do not return to living where they lived before.

That is why the single most useful thing you can ask for is a DEXA scan. The U.S. Preventive Services Task Force (2025) gives a B recommendation for osteoporosis screening with bone measurement testing in all women 65 and older. If nobody has offered it, ask — this is a common gap in real-world care. If your scan shows osteoporosis, or if you have already had a fragility fracture (a break from a fall from standing height), you are in a different risk category, and the conversation moves to medication. Bisphosphonates, denosumab and anabolic agents reduce fracture risk substantially in high-risk women; which one, and for how long, is a clinical decision — see osteoporosis treatment and osteoporosis medications compared for how they differ.

Two honest notes on supplements, because this space is heavily marketed:

• Vitamin D and calcium. For healthy community-dwelling older adults without osteoporosis or deficiency, the USPSTF recommends against supplementation with vitamin D, with or without calcium, to prevent fractures — and separately recommends against vitamin D to prevent falls (2018 statement; reaffirmed in its December 2024 draft update). That is a real finding, and it means megadosing vitamin D is not a bone strategy. It does not apply if you have been diagnosed with osteoporosis, vitamin D deficiency, or a malabsorption condition, where supplementation is standard care. Getting calcium from food is a reasonable default; see calcium and vitamin D for bones.
• Vitamin K2. Evidence grade: weak. Marketing outruns the data — trials in Western populations have not reliably shown fracture reduction. It also matters clinically: vitamin K directly antagonises warfarin. If you take warfarin, do not start a K2 supplement without telling the clinician who manages your INR. More at vitamin K2.

Muscle: is it too late to start lifting?

No — and the belief that it is too late is itself a risk factor, because it stops women from doing the one thing that works.

Sarcopenia, the age-related loss of muscle mass and strength, accelerates through this decade, and it is the hinge that connects everything else: less muscle means less power to catch yourself, a slower gait, a harder recovery from any hospital stay. Progressive resistance training is the most effective intervention we have, and the evidence that it works in the very old is not new or speculative. In the landmark Fiatarone trials, frail nursing-home residents — including nonagenarians, average age around 87–90 — gained large amounts of strength (well over 100% increases in leg strength) after just 8–10 weeks of supervised high-intensity resistance training, along with measurable gains in muscle size and walking speed.

Practically: two to three sessions a week, working the legs, hips and back against real resistance (machines, dumbbells, bands, or sit-to-stands from a chair), progressing the load over time. "Progressive" is the operative word — walking is excellent for your heart but does not build strength. Adequate protein at each meal supports the training. Start with strength training for women, and if standing work is unsafe right now, chair exercises are a legitimate on-ramp, not a consolation prize. Supervision from a physical therapist for the first weeks is a sensible investment, especially if you have joint disease or a fall history.

Balance and falls: what actually reduces them

About one in four adults 65 and older — more than 14 million people — reports falling each year, and falls are the leading cause of injury-related death in that age group. Most "fall prevention advice" is a list of platitudes. Here is what has evidence behind it:

• Exercise. The USPSTF (June 2024) gives a B recommendation for exercise interventions to prevent falls in adults 65+ at increased risk. The programs that worked were mostly gait, balance and functional training plus strength work — supervised group classes or individual physical therapy, not a pamphlet.
• Medication review. Sedatives, sleep aids, some antidepressants, and blood-pressure drugs that cause dizziness on standing are among the most fixable causes of falls. This is a conversation, not a solo project.
• Vision. An annual eye exam catches cataract, glaucoma and macular disease. Be cautious with new multifocal lenses if you already feel unsteady — they distort the ground plane.
• Home hazards. Loose rugs, cords, poor stair lighting, no grab bar in the shower. An occupational-therapy home assessment is often covered and is more useful than any generic checklist.
• What does not work: vitamin D supplementation to prevent falls in community-dwelling adults — the USPSTF explicitly recommends against it for that purpose.

Heart: the risk you are most likely to underrate

Cardiovascular disease is the leading cause of death in women, and post-menopausal risk keeps climbing through the seventies. Blood pressure control is the highest-yield lever available to you. In the SPRINT trial's pre-specified subgroup of adults aged 75 and older (mean age about 80), targeting a systolic pressure below 120 mmHg rather than below 140 mmHg cut major cardiovascular events by about a third (hazard ratio 0.66) and all-cause death by about a third (hazard ratio 0.67). Importantly, the overall rate of serious adverse events was no different between the two groups (48.4% vs 48.3%); hypotension, electrolyte abnormalities and acute kidney injury were numerically more common with intensive treatment but the differences did not reach statistical significance, and injurious falls were not increased. That is a genuinely favourable balance — but the right target still depends on your other conditions and your other medications, so it is set with your clinician and not from an article. But the direction is clear: uncontrolled blood pressure in your seventies is not benign, and "a bit high for my age" is not a thing.

Know that women's heart attack symptoms are frequently atypical — jaw or back pain, nausea, unexplained exhaustion, breathlessness — and read heart attack symptoms in women before you need it, not after.

Brain: normal ageing or a red flag?

Some slowing is normal. Word-finding pauses ("it's on the tip of my tongue"), needing to write things down, taking longer to learn a new phone — these are typical and, crucially, they don't stop you running your own life.

What is not normal ageing: getting lost in a familiar place, repeatedly asking the same question within a conversation, trouble managing money or medications that you previously handled, poor judgement with money, personality change, or a family member being more worried than you are. Those deserve evaluation — partly because some causes are reversible (thyroid disease, B12 deficiency, depression, medication side effects, sleep apnoea).

The 2024 Lancet Commission estimates that up to 45% of dementia cases worldwide could theoretically be prevented by addressing 14 modifiable risk factors — hypertension, hearing loss, physical inactivity, social isolation, depression, diabetes, smoking, high LDL, untreated vision loss and others. That is a population estimate, not a personal guarantee, but the implication for your seventies is real: blood pressure, exercise, hearing and staying socially connected are brain interventions.

Hearing and vision: the modifiable risk almost nobody knows about

Untreated hearing loss is an independent, modifiable dementia risk factor — the Lancet Commission attributes roughly 7% of dementia risk to it, making it one of the largest single contributors from midlife onward. A meta-analysis of eight cohort studies (nearly 127,000 people) found that people with hearing loss who used hearing aids had significantly lower rates of cognitive decline and dementia than those who did not. The ACHIEVE randomised trial did not show benefit across its whole population, but did show slowed cognitive decline in the higher-risk subgroup — so the evidence is suggestive rather than settled. Even setting dementia aside, hearing loss drives social withdrawal, which is itself on the risk list.

The practical point: get a hearing test, and take it seriously if it's abnormal. Over-the-counter hearing aids for mild-to-moderate loss have been legal in the U.S. since 2022 and cost a fraction of prescription devices. Untreated vision loss is on the same list — annual eye exams matter for your brain as well as your balance.

Medications: the pill list is a health risk in itself

Polypharmacy — commonly defined as five or more regular medications — is ordinary in this decade, and it accumulates by drift: a drug started for a reason that expired years ago, a second drug treating the side effect of the first. Every added drug raises the odds of interaction, dizziness and falls. Anticholinergics, benzodiazepines, "Z-drugs" for sleep, and some bladder medications are repeat offenders and appear on the American Geriatrics Society Beers Criteria list of drugs to use with caution in older adults.

Ask explicitly for a deprescribing review: bring every bottle, including supplements and over-the-counter products, and ask of each one, "is this still doing something for me, and what would happen if we stopped it?" Do not stop anything on your own. You can screen your own list for known interactions first with our interaction checker. Interactions that genuinely matter and are routinely missed: vitamin K against warfarin; magnesium and calcium binding levothyroxine and certain antibiotics (tetracyclines, fluoroquinolones) if taken at the same time; and evening primrose oil, fish oil and high-dose vitamin E adding bleeding risk on top of anticoagulants or antiplatelets.

Bladder and pelvic floor: treatable, not inevitable

In CDC's national survey of Americans 65 and older living at home, 43.8% reported urinary leakage — and women report it far more, and more severely, than men (about 12% of older women have severe or very severe symptoms). Yet it is chronically under-reported: many women never raise it with a clinician at all, and those who do often wait years. That silence is expensive: incontinence drives night-time trips to the bathroom (a classic fall scenario), social withdrawal, and skin problems.

It is treatable. Supervised pelvic floor muscle training has good evidence for stress incontinence; bladder training and behavioural therapy help urgency; and low-dose vaginal estrogen improves urinary symptoms from genitourinary syndrome of menopause, acting locally with minimal systemic absorption. Start with urinary incontinence and pelvic floor exercises, and raise it at your next appointment — nobody will bring it up for you.

What to be screened for, and when

When to see a doctor

Call emergency services (911) now for chest pressure or pain, sudden shortness of breath, sudden weakness or numbness on one side, face droop, slurred speech, sudden severe headache, sudden loss of vision, or a fall with head injury — especially if you take a blood thinner, where a head injury needs assessment even if you feel fine.

Book an appointment promptly for:

• Any fall, even one you got up from — a fall is a medical event and predicts the next one.
• Any vaginal bleeding after menopause. This is never normal at this age and always needs evaluation.
• A new breast lump or nipple change; unexplained weight loss; blood in the urine or stool.
• New confusion, a step change in memory, or a family member telling you they are worried.
• Dizziness or light-headedness on standing (often a medication effect — fixable).
• Leaking urine, urgency, or getting up more than once a night to urinate.
• Sudden severe back pain — in a woman of this age it can be a vertebral compression fracture.

None of this is a substitute for care from a clinician who knows you. Nothing here is a prescription: don't start, stop or change any medication, hormone therapy or supplement on the strength of an article, including this one.

The one-paragraph version

Ask for a DEXA scan if you haven't had one. Lift something heavy twice a week and do balance work, whatever your age. Get your blood pressure to a target you and your clinician agreed on. Get your hearing and vision tested and act on the results. Bring every pill and supplement to one appointment and ask what can come off the list. Say the word "incontinence" out loud to a doctor. And treat the next decade as something to train for — see your body in your 60s for what came before, and exercises for bone density for where to start today.