I'm only half-way through this morning's second cup, so that might be a factor, but I have a few problems with this article.
- "substances found within caffeine" dosn't make any sense. Caffeine is a specific chemical compound.
- "reduction in inflammation and caffeine is not causal" is a direct quote, yet the rest of the article seems to contradict it.
- "gene clusters known to be associated with ageing and inflammation" - low activity correlated with coffee drinking. This could mean that naturally long-lived people tend to drink coffee.
Anyway, I'm off to read the Stanford press release referenced here. It was also written by a mere journalist, but seems to have more information. The actual Nature Medicine article isn't freely available.