Health Tests Everyone Should Do After 45

There is a particular kind of health that arrives in your forties. You feel largely fine. You still do most of what you have always done. And yet something has shifted — recovery takes longer, sleep feels less generous, and the body has begun keeping records you cannot read from the outside.

This is the paradox of midlife health. The years between 45 and 55 are rarely when problems announce themselves. They are when problems begin. Blood pressure creeps upward by a point or two a year. Blood sugar drifts. Bone density thins quietly. None of it hurts. All of it matters.

Health testing in this decade is not about looking for something wrong. It is about establishing a baseline while you are well, so that change can be noticed early — when it is still easy to influence.

1. The Cardiovascular Picture

Heart disease remains the leading cause of death worldwide, and it develops over decades rather than months. The encouraging part is that it is also among the most measurable and modifiable.

A meaningful cardiovascular review usually includes:

• Blood pressure, measured on more than one occasion rather than once in a clinic
• A full lipid panel — total cholesterol, LDL, HDL and triglycerides
• Lipoprotein(a), a largely genetic risk marker that most people are never tested for and only need measured once in a lifetime
• A resting ECG, particularly if there is family history

Lipoprotein(a) is worth asking about specifically. It is inherited, it is not much influenced by diet, and knowing your number changes how seriously you and your doctor treat everything else.

What matters is less any single reading than the direction of travel over time. A cholesterol result means far more when you have three years of them to compare it against.

2. Metabolic Health

Metabolic changes are the quietest of all. Insulin resistance can develop for years before it appears as anything a routine test would flag.

Worth requesting:

• Fasting glucose
• HbA1c, which reflects average blood sugar over roughly three months
• Fasting insulin, which often shifts earlier than glucose does
• Liver function markers, which can indicate fatty liver — increasingly common and frequently silent

Waist circumference belongs here too. It is unglamorous and costs nothing, yet it predicts metabolic risk more reliably than weight alone.

3. The Screenings That Begin in This Decade

Several cancer screenings are designed to start in exactly this window, and guidelines have shifted earlier in recent years.

Colorectal screening now typically begins at 45 in many countries rather than 50. Mammography guidance commonly begins between 40 and 50. Cervical screening continues on its established schedule. Prostate screening is a conversation to have with a doctor rather than a default, as the evidence around it is genuinely mixed.

A full-body skin check is easily overlooked and takes fifteen minutes. Most of us have accumulated decades of sun exposure we barely registered at the time.

4. Bone, Muscle and Strength

Bone density peaks in the thirties and declines steadily afterwards — more sharply for women around menopause. Muscle mass follows a similar trajectory. Neither loss is visible until it becomes consequential, often in the form of a fall or a fracture decades later.

Reasonable checks include:

• A DEXA scan for bone density, especially for women approaching or past menopause, or anyone with a family history of osteoporosis
• Vitamin D, which is widely low and easily corrected
• Grip strength — a remarkably good predictor of longevity, and something a physiotherapist can measure in moments

These results tend to be the most actionable of any on this list. Resistance training and adequate protein can meaningfully change the trajectory, and it is never too late to begin.

5. The Senses and the Mind

Hearing loss usually begins in the forties and is often first noticed by someone else — the volume of the television, the difficulty of following conversation in a busy restaurant. Untreated hearing loss is associated with social withdrawal and cognitive decline, which makes a baseline audiogram more valuable than it sounds.

An eye examination after 45 is checking for more than a prescription. It screens for glaucoma and macular changes, both of which progress silently, and the retina offers a rare direct view of blood vessels that reflects wider vascular health.

Thyroid function and B12 are also worth including. Both can produce fatigue, low mood or foggy thinking that gets attributed to age when it is straightforwardly treatable.

Reading the Results Well

A word about how to hold all of this. Testing is only useful if the results lead somewhere — otherwise it produces anxiety without direction.

Ask for your actual numbers rather than accepting "everything looks normal." Keep them somewhere you can find them. Normal ranges are wide, and a result sitting at the edge of normal for three consecutive years tells a different story than a single reading in isolation.

None of this is a substitute for a conversation with your own doctor, who knows your history in a way no article can. Think of this as a list of questions worth bringing to that conversation.

Reflection Questions

• When did I last have a genuine health review, rather than a visit prompted by something going wrong?
• Do I know my own numbers — blood pressure, cholesterol, HbA1c — or only that someone once told me they were fine?
• What do I know about my family's health history, and what have I never thought to ask?
• Which of these checks have I been quietly postponing, and what is the postponement actually about?

Final Thoughts

There is an understandable reluctance to look closely. Testing invites the possibility of finding something, and it can feel safer not to know.

But the years after 45 are precisely when knowing is most useful. Almost everything found early in this decade is manageable. Almost everything found late is harder.

The point is not to become preoccupied with health. It is to spend an afternoon now so that you can spend the following decades not thinking about it — moving through your next chapter with the quiet confidence of someone who has already looked.