Inflammation has a bad reputation it doesn't fully deserve. At its core it's just your immune system doing its job — the coordinated response that rushes blood, fluid, and immune cells to a spot that's been injured or invaded. The redness around a cut, the swelling of a sprained ankle, the heat of a healing wound: that's inflammation working exactly as designed.
The useful distinction isn't 'inflammation good' or 'inflammation bad.' It's acute versus chronic. Acute inflammation is fast, local, and self-limiting — it shows up, does its work, and resolves. Chronic, low-grade inflammation is the opposite: a faint, body-wide signal that never fully shuts off, often without any obvious symptom at all.
That second kind is what researchers have spent the last two decades trying to understand, because a persistent low hum of inflammation behaves very differently from a clean flare-and-resolve. The biology is the same machinery — it's the duration that changes everything.