If someone asked you to explain immunotherapy to a friend, what would you say? Most of my patients hear "immunotherapy" and assume it's another version of chemotherapy. It's not. And that difference matters. Here's how I explain it: Chemotherapy uses drugs that directly attack cancer cells - but it also damages healthy cells, which is why it causes the side effects most people fear. Immunotherapy takes a different approach. It helps your own immune system recognize and fight the cancer. Cancer cells are clever - they find ways to hide from your immune system or shut it down. Immunotherapy removes those hiding spots. Think of it like this: your immune system is a security guard. The cancer has found a way to wear a disguise. Immunotherapy pulls off the disguise so the guard can do its job. This means immunotherapy often works differently than chemo - it can take longer to show results, but when it works, the response can last much longer. I've just added a full lesson to the Classroom that goes deeper into the different types of immunotherapy (checkpoint inhibitors, CAR-T, monoclonal antibodies, and more). If you want a clearer picture of what immunotherapy actually is and how it works, that's a good place to start.

Something I see coming up again and again in conversations about immune health is the idea that we need to "boost" the immune system. In reality, it’s much more about regulation - responding when needed, and standing down when the job is done. An immune system that’s always activated isn’t necessarily healthier. Chronic inflammation, allergies, and autoimmune issues often reflect dysregulation rather than weakness. One habit that consistently makes a difference, and is often underestimated, is sleep consistency. Not perfect sleep, not wearables - just relatively stable sleep and wake times. This is when immune signaling and repair actually happen. From experience, the people who stay well aren’t chasing hacks. They’re steady with the basics: sleep, movement, manageable stress, and recovery. Boring, maybe - but effective. I’m curious: What have you been told about "boosting" immunity?