This episode is the season finale of Gene Talks Season 2. Host Yoyo uses Siddhartha Mukherjee’s The Gene: An Intimate History as the central lens through which she guides listeners across the history of genetics and the profound ethical questions it raises. Mukherjee is an oncologist at Columbia University and a Pulitzer Prize winner who spent ten years writing this book, described as a work that combines scientific rigour with deep humanity. The episode’s core questions echo the “designer baby” topic introduced in Season 1, Episode 9, examining humanity’s choices and responsibilities in the face of advancing genetic technology from a broader historical and philosophical perspective.

This episode is hosted by Yoyo, Hong Kong’s first Australia-certified genetic counsellor. It opens with a real clinical story: a couple brings in their four-year-old son, who has already been diagnosed with Autism Spectrum Disorder (ASD) and Developmental Delay. His mother confides that every night she lies awake asking herself, “Did I do something wrong during my pregnancy?” The central question of this episode: What is the real value of genetic diagnosis for families of children with neurodevelopmental disorders? Is it an unnecessary step?

This is Episode 10 of Season 2 of Gene Talks, and the second part of a two-episode series titled “My Genetic Counsellor’s Career Notes: Things Nobody Told Me Before Entering the Field.” Listeners are encouraged to start with Episode 8 (Part 1) for full context. The host, Yoyo, is a practising genetic counsellor. Drawing from her own career experiences, this series explores topics that are rarely addressed in formal training programmes, yet carry profound implications for long-term professional development. This episode covers the three aspects of the series that are least often discussed openly, with a central question running throughout: how to sustain a long and fulfilling career in this field while remaining honest with yourself.

If you or someone you love has been diagnosed with colorectal, gastric, or endometrial cancer, the 2026 NCCN guideline update carries one clear message: germline genetic testing is no longer a question of whether — it’s a question of when. In this episode, we explain why genetic testing has shifted from a tool for predicting future risk into a frontline instrument for shaping your treatment today, and what you should be asking your oncologist right now.

This episode is Part 1 of the “My Genetic Counselor Learning Journal” series on Gene Talk. Host Yoyo, a genetic counselor with thirteen years of experience, opens up her career notebooks and candidly shares the insights that were never fully taught in the classroom, yet have had a profound impact on her professional journey. This episode is particularly relevant for: Students considering applying to genetic counseling programs New graduates entering the genetic counseling or genetics field Practicing genetic counselors who are re-evaluating their career direction

VUS (Variant of Uncertain Significance) is a common outcome in modern genetic testing. It reflects scientific caution and responsibility. A VUS should never be used as the basis for major medical or reproductive decisions, including embryo selection, prophylactic surgery, or family screening programmes. VUS classifications are dynamic and subject to change as science progresses. An individual’s own clinical information plays a vital role in driving reclassification. Establishing a structured genetic counselling review plan every 2 to 5 years is the most evidence-informed approach to managing the uncertainty of a VUS. Genetic counselling provides far more than scientific information. It offers sustained psychological support and decision-making companionship throughout what can be a long and uncertain journey.

In this episode of Gene Talks, genetic counsellor Yoyo takes listeners through a deeply human exploration of BRCA1/2 pathogenic variants. It begins with real-life stories from public figures and building towards a clear, empowering framework for understanding hereditary cancer risk management and the pivotal role of genetic counselling.

The question “can AI replace genetic counsellor?” Has been a common question. In particular, many companies are training AI to be expert in ethical analysis. In long run, ‘knowing how to do ethical analysis’ is no longer the advantageous factor for genetic counselors. What are the unique assets for genetic counselors? This episode uses Aristotle’s work Nicomachean Ethics to explain phronesis, which is hard to be replaced by AI.

Thalassemia is more than just anaemia! There are many misconceptions about this. Carriers of thalassemia are common in Hong Kong. Knowing being a carrier would give you options in family planning. Genetic counselling is about providing a clear map, so that every couple can make the most informed and considered decisions for themselves and their future children, with time on their side.

Key Question: What are the differences between NIPT, Amniocentesis, and CVS? The focus shifts to prenatal genetic testing during pregnancy. Helps expectant parents navigate the options available to them and understand the considerations behind each choice.

Key Question: Why Do Healthy Couples Still Need Genetic Counselling? “Being physically healthy” and “having no genetic risks” are two entirely different concepts. Even if both partners are in good health and have no obvious family history of genetic disease, they may still carry genetic risks without knowing it.

Yoyo returns after a season break, during which she completed professional development, delivered talks to obstetricians and nursing students, and mentored aspiring genetic counselling students. One question kept surfacing: what actually happens inside a genetic counselling session? This episode is her answer. The episode walks listeners through a complete, virtual counselling experience — from preparation to receiving a written report. Intended for anyone anxious about a family history of disease, considering prenatal screening, or holding a genetic report they cannot understand.

In this season finale, Yoyo reflects on her journey as a genetic counselor—how years of clinical experience shaped both her profession and her purpose. The story begins with her internship at the Royal Children’s Hospital in Melbourne, where she realized that the notes she took were not only medical, but deeply human. The episode opens with a warm Lunar New Year greeting and a personal reflection on change, closure, and renewal. Core message: Leaving the clinic did not mean leaving her calling.

What happens when we can literally rewrite life? In this episode, genetic counselor Yoyo explores the power and peril of CRISPR, the technology that allows scientists to “edit” human genes. Drawing from the movie Gattaca to real-world headlines, she asks: What do we risk losing when humanity starts chasing perfection?

Pregnancy is supposed to be a season of joy and anticipation. But in today’s world, routine blood tests can reveal a baby’s genetic blueprint long before birth. This knowledge promises “peace of mind,” yet often brings a new kind of fear — the fear of not knowing enough. Host and genetic counselor Yoyo opens this episode by asking: What happens when the power to know arrives before the emotional capacity to face it?

If you could know your future — your health, your risks, your body at age 60 — would you want to look? In this episode of Gene Talks, host Yoyo, a certified genetic counsellor by HGSA, explores one of the most emotionally complex topics in modern medicine: Predictive Genetic Testing. This test doesn’t diagnose disease — it predicts risk. But when knowing doesn’t mean you can change your fate, does that knowledge become an empowering gift, or a lifelong burden?

In this era of rapid transformation, the rhythm of genetic research and technology is accelerating faster than ever. In Episode 6 of Gene Talks, host Yoyo—a genetic counselor—reflects on the breakthroughs of 2025 and opens the door to a new chapter of 2026. Through both scientific insight and human reflection, she invites listeners to find their own rhythm of understanding amid uncertainty.

With rapid advances in genetic technology, more parents are beginning to ask: “If I can know my child’s genetic risks early, wouldn’t that help me protect them better?” But when no effective treatment yet exists, does “knowing” truly bring comfort — or simply allow anxiety to arrive sooner? In this episode of Gene Talks, Yoyo explores this question through the story of a mother from a family affected by a rare neurodegenerative disease. From a parent’s perspective, we examine the emotional and ethical crossroads between love and control, fear and protection, and what it truly means to act “for a child’s good.”

In this episode, genetic counselor Yoyo helps listeners understand the many forms of genetic testing that exist today. While people often say they “did a DNA test,” few realize that not all tests serve the same purpose. Through stories and clear explanations, the episode separates medical‑grade tests from commercial ones, explores four major clinical categories, and reflects on the emotions that come with “knowing too much, too soon.”

There are often questions about the roles of doctors and genetic counsellors, such as how their roles differentiate and how they work together. This is why I would like to talk more about this in this episode.

This time I would be talking about when you see that line on your report (i.e. a genetic variant is detected), how can a Genetic Counselor help?

Genetic counsellors are the bridge between technology and humanity. They translate data into understanding, fear into clarity, and isolation into connection. In an age overwhelmed by genetic information, their work reminds us that genetics is not only about DNA — it’s about people, choices, and the courage to understand ourselves.