Why Is Every Generation Getting Sicker?

Do you think your grandparents were healthier than we are today? It's a question worth sitting with, because when you actually compare generations, a pattern starts to emerge. Conditions that once showed up later in life — type 2 diabetes, autoimmune disease, certain cancers, even cognitive decline — are increasingly showing up earlier. Sometimes decades earlier.

In the last episode, we asked why chronic illness keeps rising despite having more doctors, medications, and technology than ever before. This week, the question narrows. It's not just that chronic illness is common — it's that each generation seems to be developing it sooner than the one before. A grandparent might have been diagnosed with a chronic condition in their sixties. Their child, in their forties. Their grandchild, sometimes in their twenties or even in childhood.

That shift matters, because it points us toward the right question. Genetics simply don't change fast enough to explain a pattern like this. DNA shifts over thousands of years, not two or three generations. So if our biology hasn't changed, something else has. The most obvious candidates are the things that have changed dramatically in a short window of time — the food on our plates, the chemicals in our daily environment, the quality of our sleep, the constant demands on our nervous system.

None of these changes happened overnight, and no single one explains everything on its own. But when you stack them together across a lifetime, and then across a childhood that starts with more exposure than any generation before it, the pattern becomes harder to ignore.

This isn't a reason to panic. It's a reason to pay attention. If our genes aren't driving this shift, then the environment and lifestyle factors that are driving it may also be things we have some ability to influence. That's a very different, and much more hopeful, way to look at the problem.

Follow along as we continue connecting the dots.