A new test claims to tell how well you’re ageing – and even when you’ll die. But I’d rather not know
Why Read This
What Makes This Article Worth Your Time
Summary
What This Article Is About
Science writer Helen Pilcher examines a new biological age test developed by Vadim Gladyshev of Harvard Medical School, which uses patterns of gene activity collected from over 4,000 people to estimate not only how fast someone is ageing, but also their probable “time to death.” She contrasts this with older molecular clocks like the epigenetics-based Horvath clock, noting that while the new method may be more sensitive, such tests deliver probabilistic estimates rather than definitive forecasts.
Despite acknowledging the test’s potential scientific and policy applications, Pilcher argues compellingly against taking it herself. Drawing on Yale psychologist Becca Levy‘s research on self-perception of ageing, she warns that receiving a negative result could physically harm a person by instilling negative beliefs about their own decline — beliefs that, according to Levy’s Oxford, Ohio study, can shorten life expectancy by an average of 7.5 years.
Key Points
Main Takeaways
Two Ages, One Body
Chronological age counts years lived; biological age measures the actual health of cells and organs, which can differ significantly between individuals.
Harvard’s New Molecular Clock
Gladyshev’s test analyses gene activity patterns from 4,000+ humans and multiple animal species, claiming to predict both biological age and time to death.
Probability, Not Prophecy
These tests compare your molecular profile to large datasets and infer statistical risk — they cannot predict the exact date of death or specific future illnesses.
Beliefs Shape Biology
Becca Levy’s research shows that negative attitudes about ageing are physically embodied over time, increasing cardiovascular risk, memory loss, and earlier death.
7.5 Years at Stake
Levy’s Oxford, Ohio study found that people with negative views of ageing died, on average, 7.5 years earlier than those with positive ageing beliefs.
Knowledge Can Cost You
The author argues that for many people, knowing a negative biological age result could undermine the positive mindset that actively promotes healthy, longer ageing.
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Article Analysis
Breaking Down the Elements
Main Idea
More Data Does Not Always Mean Better Decisions
Pilcher argues that while Harvard’s new gene-activity-based biological age test is scientifically impressive, the psychological risks of receiving a negative result outweigh its personal benefits for most people. The knowledge that you are ageing faster than average — or are closer to death — can become a self-fulfilling prophecy, making the test itself a potential health hazard.
Purpose
To Persuade Readers Against Taking Biological Age Tests
Pilcher uses the launch of Gladyshev’s test as an opportunity to warn readers — especially those over 50 — that the psychological harm of a negative result can outweigh any benefit. She blends scientific reporting with personal reflection and Becca Levy’s research to build an evidence-based case for protecting one’s positive self-perception of ageing.
Structure
Anecdotal Hook → Scientific Explanation → Personal Rebuttal
The piece opens with the Kardashians’ blood test as an engaging cultural hook, then transitions into an Explanatory → Research-Driven middle section covering molecular clocks and Levy’s psychology findings, before closing with a Personal → Persuasive conclusion where the author rejects the test on philosophical and health grounds.
Tone
Wry, Cautionary & Personally Reflective
Pilcher writes with dry wit — dismissing the Kardashians’ smugness and making self-deprecating remarks about eating biscuits and skipping exercise. Beneath the humour, however, is a genuinely cautionary and well-evidenced argument. The tone is conversational yet intellectually grounded, balancing scientific credibility with accessible, first-person warmth.
Key Terms
Vocabulary from the Article
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Tough Words
Challenging Vocabulary
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Marked by or full of many small pits or imperfections; used figuratively to mean characterised by numerous problems or setbacks.
“…when people expect old age to be pockmarked with frailty and decline, it becomes more likely to happen.”
Things or people that came before the current one, especially in a role or field; earlier versions that the current one has replaced or improved upon.
“The researchers believe this method is more sensitive than its predecessors.”
Counted, calculated, or matched up a set of data or records; compared and cross-referenced two sets of information to identify a relationship.
“…Levy tallied the responses with data from the US National Death Index.”
To gradually gather or build up over time; to increase in quantity or effect through a slow, continuous process of addition.
“…changes in behaviour, stress hormone levels and immune system function can accumulate to influence physical health…”
A genus of Old World monkeys widely used in biomedical research because of their genetic and physiological similarity to humans.
“…collected from more than 4,000 people…as well as looking at data from mice, rats and macaques.”
To reach a conclusion based on evidence and reasoning rather than from explicit statements; to deduce something indirectly from available data.
“Then they infer your likely risk of disease or how long you might have before death based on what has happened to people with similar characteristics.”
Reading Comprehension
Test Your Understanding
5 questions covering different RC question types
1Gladyshev’s new biological age test is currently available to the general public as a consumer product.
2What is the primary basis of Gladyshev’s new biological age test, as described in the article?
3Which sentence best explains why the author says biological age tests provide estimates rather than certainties?
4Evaluate the following statements about Becca Levy’s research as described in the article:
Levy’s research found that people with negative views of ageing died, on average, 7.5 years earlier than those with positive ageing beliefs.
Levy’s Oxford, Ohio study was conducted entirely within a single year, producing rapid results.
According to Levy’s work, people who anticipated old age to involve frailty and decline were more likely to experience cardiovascular problems and memory loss.
Select True or False for all three statements, then click “Check Answers”
5What can be inferred about the author’s view of the relationship between scientific knowledge and personal wellbeing?
FAQ
Frequently Asked Questions
Chronological age is simply the number of years you have been alive — the candles on your birthday cake, as the article puts it. Biological age, by contrast, measures the actual health condition of your cells and organs. Two people of the same chronological age can have very different biological ages depending on genetics, lifestyle, and environment.
The Horvath clock is one of the most well-known molecular clocks; it estimates biological age using epigenetics — the pattern of chemical tags attached to DNA. Gladyshev’s newer method instead analyses patterns of gene activity across thousands of human and animal subjects. The article notes that Gladyshev’s team believes their approach is more sensitive than its predecessors, including the Horvath clock.
Pilcher draws on Becca Levy’s research, which shows that negative beliefs about ageing can become “biologically embodied” — they actually manifest as physical changes in behaviour, stress hormones, and immune function. A result suggesting you are ageing faster than average could install the very negative mindset that Levy’s data links to shorter lifespans and greater risk of cardiovascular disease and memory loss.
Readlite provides curated articles with comprehensive analysis including summaries, key points, vocabulary building, and practice questions across 9 different RC question types. Our Ultimate Reading Course offers 365 articles with 2,400+ questions to systematically improve your reading comprehension skills.
This article is rated Intermediate. While the writing is accessible and conversational, it introduces domain-specific terms such as epigenetics, gene activity, and molecular clocks, and requires readers to follow an argument that blends scientific reporting with psychological research. Readers will need to distinguish between probabilistic reasoning and absolute claims — a skill central to CAT, GRE, and GMAT reading comprehension sections.
Helen Pilcher is a science writer and author who contributes to The Guardian. Her piece is notable because she approaches a new scientific test not from a purely technical angle but from a personal and psychological one, blending scientific literacy with lived reflection. This makes the article a strong example of first-person opinion writing that integrates research evidence — a text type frequently tested in RC exams.
The Ultimate Reading Course covers 9 RC question types: Multiple Choice, True/False, Multi-Statement T/F, Text Highlight, Fill in the Blanks, Matching, Sequencing, Error Spotting, and Short Answer. This comprehensive coverage prepares you for any reading comprehension format you might encounter.
