If someone's Lp(a) is high once, it will remain high.
In the quiet accumulation of half-understood health advice, a cardiologist has stepped forward to untangle eight persistent myths about cholesterol — particularly around a genetic marker called Lp(a) that most people have never encountered but many silently carry at dangerous levels. Dr. Dmitry Yaranov's intervention is a reminder that the stories we tell ourselves about health can be as harmful as the conditions we misunderstand. Genetics, he argues, often outweigh lifestyle in determining cardiovascular risk, and that risk begins not in old age but in the earliest chapters of a life.
- A largely unknown cholesterol variant called Lp(a) can be dangerously elevated even in young, fit individuals who believe they have nothing to worry about.
- The widespread belief that diet and exercise can fix all cholesterol problems is actively misleading — Lp(a) is almost entirely genetic and barely responds to lifestyle changes.
- Inconsistent lab methods mean that cholesterol numbers from different clinics may not be comparable, creating a false sense of certainty in test results.
- New pharmaceutical treatments in late-stage trials are approaching the market, offering hope for a condition that has long been considered beyond medical intervention.
- Cardiologists are urging universal Lp(a) testing at least once in a lifetime, as a single stable reading can inform decades of cardiovascular decision-making.
Cholesterol conversations have long been shaped by oversimplifications — cut the fat, stay slim, and you'll be fine. Cardiologist Dmitry Yaranov recently challenged eight of these assumptions, with particular focus on Lp(a), a form of cholesterol most people have never heard of but many carry at harmful levels without knowing it.
The myths begin with who needs testing. Yaranov insists everyone should be screened for Lp(a) at least once, since dangerously high levels can appear in young, athletic individuals with no obvious risk factors. Lp(a) is also commonly mistaken for a minor variation of LDL cholesterol, when in fact its additional proteins make it significantly more likely to cause arterial plaque and valve damage — a meaningful biological distinction, not a technicality.
Perhaps the most consequential myth is that lifestyle changes can lower Lp(a) the way they improve other cholesterol markers. They cannot. Lp(a) is almost entirely determined by genetics. Diet and exercise support overall heart health, but they barely affect Lp(a) levels. Adding to the confusion, different laboratories use different measurement methods, making results from separate clinics difficult to compare directly.
On the question of stability, Yaranov offers both a warning and a clarification: Lp(a) levels remain remarkably constant throughout adult life, meaning a single elevated reading is not a fluctuation but a permanent condition. This also means one test provides lasting, actionable information. And while treatment options are currently limited, powerful new medications are in late-stage trials and may soon change that reality.
The final myth — that Lp(a) is an older person's concern — may be the most dangerous of all. Elevated levels can silently accelerate heart disease decades before any symptoms emerge. The broader message is that cholesterol is more complex than common wisdom suggests, genetics carry more weight than lifestyle alone, and awareness sought early can genuinely alter the course of a life.
Cholesterol talk tends to drift into half-truths and oversimplifications. People hear that cutting fat solves everything, or that only the overweight need to worry, and they build their understanding on these shaky foundations. The result is a landscape of misconceptions that can quietly undermine heart health. Cardiologist Dmitry Yaranov recently laid out eight of these myths in detail, focusing especially on a type of cholesterol called Lp(a) that most people have never heard of but should understand.
The first myth is that only people at obvious risk need cholesterol testing. This is wrong. Lp(a) can be dangerously elevated even in young, athletic people with no other risk factors. Yaranov argues that everyone should be tested at least once in their lifetime to know where they stand. The second misconception treats Lp(a) as just another form of LDL cholesterol—a minor variation on a familiar theme. In fact, while they share a similar outer structure, Lp(a) carries additional proteins that make it far more likely to cause plaque buildup in arteries. This distinction matters enormously.
The third myth suggests that diet and exercise can bring down Lp(a) levels the way they can improve other cholesterol markers. This is largely false. Lp(a) is almost entirely determined by genetics. Lifestyle changes help overall cardiovascular health, but they barely move the needle on Lp(a) itself. A fourth misunderstanding assumes that all cholesterol tests are equivalent—that a number is a number. In reality, different laboratories use different methods and measurement units, so results from one lab may not be directly comparable to results from another. Context and consistency matter.
The fifth myth holds that high Lp(a) is not a proven risk factor for heart disease. Yaranov counters that elevated Lp(a) directly causes plaque accumulation and can damage the aortic valve. It is not a theoretical concern but a documented mechanism of harm. The sixth misconception suggests that cholesterol levels fluctuate significantly over time. In truth, Lp(a) levels are remarkably stable throughout adult life. If someone's Lp(a) is high once, it will remain high. This stability is both a curse and a clarification—it means a single test provides lasting information.
The seventh myth claims there is nothing to do about high Lp(a). While treatment options are limited today, powerful new medications are in late-stage clinical trials and may soon become available. Staying informed about these developments is worthwhile. The eighth and final myth suggests that Lp(a) is only a concern for older people. The opposite is true. Elevated Lp(a) can accelerate heart disease decades before any symptoms appear, meaning risk begins in youth and compounds over time. For anyone with high Lp(a), the clock starts early. The takeaway is clear: cholesterol is more complex than most people realize, genetics play a larger role than lifestyle alone, and early awareness can change the trajectory of heart health.
Citações Notáveis
Lp(a) is almost entirely genetic. Lifestyle helps overall heart health, but barely affects these levels.— Cardiologist Dmitry Yaranov
A Conversa do Hearth Outra perspectiva sobre a história
Why does Lp(a) get so little attention compared to regular cholesterol?
Because it's genetic and can't be fixed with the usual advice—eat better, exercise more. That makes it harder to market as a solvable problem. But it's actually more dangerous in some ways.
So someone could be thin, athletic, and still have dangerously high Lp(a)?
Exactly. You could run marathons and eat perfectly and still have inherited a cholesterol variant that builds plaque in your arteries. That's why testing matters regardless of how healthy you look.
If diet doesn't help, what's the point of knowing your Lp(a) level?
Knowledge itself is power. You can monitor your heart more carefully, catch problems earlier, and when new drugs arrive—which they will—you'll already know you're a candidate. Right now, awareness is the main tool.
These new drugs in trials—how different would they be from current cholesterol medications?
Current drugs barely touch Lp(a). These new ones are designed specifically to lower it. They could change the game for people who've been told there's nothing to do.
How many people actually have dangerously high Lp(a)?
The source doesn't give exact numbers, but the point is it's common enough that everyone should know their level. It's not rare—it's just invisible until you test.