It can be hard to eat well and get enough exercise when you have a full time job. I was brushing my four-year-old daughter's hair when she said, "Mummy, you have lots of lines on your face." Thank you sweetie.

A few weeks ago, I received my test results. When I took the test, I was 35 years old. It is assumed that I am aging at a normal rate, no better or worse than the other 35-year-olds we have data for. I felt a little annoyed. I have two small children and am chronically sleep deprived, but I eat mostly plant-based food and do yoga three times a week. I'm clinging on to the fact that there's only so much we can take away from a biological clock score, no matter how attractive it may be. We don't know how accurate these tools are or how much they can tell us about our health. A lot of scientists are trying to figure out what is going on inside our bodies and develop clocks that better reflect it. Martin Borch Jensen is the chief science officer at Gordian Biotechnology, a company that aims to discover new treatments for age related diseases. We need to find out if we have that or if it's just a mirage.

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The piece was published in April. At the end of September, I attended a super-fancy longevity conference for the mega-rich in the Swiss Alps, and found a fascinating world of hope, hype, and self-experimentation.

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