A patient undergoes whole genome sequencing to understand unexplained seizures. The analysis provides the answer. But it also reveals something else – a pathogenic variant associated with sudden cardiac death. The seizures are treatable. The cardiac risk, once invisible, is now preventable. No one asked that second question. But the…
Have you ever wondered why a medicine works perfectly for someone else, but gives you side effects or doesn’t work at all? This is more common than people think. One important reason is genetics. Your DNA influences how your body breaks down medicines, how strongly they act, and whether you…
Inside almost every cell in your body lives a tiny power plant called the mitochondrion. These microscopic structures generate the energy that keeps your heart beating, your brain thinking, and your muscles moving. But mitochondria carry something even more surprising: their own DNA. This small but powerful genetic code is…
Most genetic testing today only happens after someone gets sick or has a strong family history. But scientists are now exploring a different approach: genomic screening for healthy adults, to find hidden risks before disease develops. A major pilot study in Australia offered free genetic screening to 10,263 adults aged…
Have you ever wondered why a medicine works well for one person but causes side effects in another? Or why some people need a higher dose to feel better, while others feel drowsy or unwell after just one tablet? A major reason is that our bodies do not process medicines…
Carrier screening is a genetic test that helps identify whether a person is a carrier of an inherited genetic condition. A carrier is usually healthy and has no symptoms, but can still pass a non-working gene copy to their child. Carrier screening is most useful when planning a pregnancy, because…
Preventive healthcare has traditionally relied on a simple approach: wait for symptoms, confirm a diagnosis, and then treat the disease. While this model has saved countless lives, it often detects illness only after damage has already begun. Whole Genome Sequencing (WGS) has the potential to change that approach by helping…
Consanguinity means marriage or having children with a close biological relative, such as a first cousin or second cousin. In many communities around the world, consanguineous marriages are culturally accepted and can be common. While most children born to related parents are healthy, consanguinity is important in genetics because it…
When people hear the word “mutation,” they often think it automatically means cancer. In reality, mutations are simply changes in DNA, and they are a normal part of biology. Some mutations are harmless, some can increase cancer risk, and some directly drive cancer growth. A key point in understanding cancer…
If you’ve had genetic testing done, you may have seen the word “carrier” in your report. For many people, this term sounds alarming—but in most cases, being a carrier does not mean you are sick. Here’s a simple explanation of what it means and why it matters. What is a…
