How to lengthen your telomeres

We’ll talk tomorrow about telomeres, those little end-caps on your chromosomes that shorten over time, contributing to the aging process. It turns out that all those lifestyle changes the media keep harping on may actually have a significant effect on our telomeres. While eating right and meditating won’t make you immortal, they may actually lengthen your telomeres, which is a revolutionary finding. And apparently this works even for people that already have cancer, as a recent Lancet study showed. I’m going to yoga tomorrow.

Path Bites

I thought I’d mention that I have a little daily pathology newsletter called Path Bites. It’s just a little pathology fact every day, nothing too overwhelming. It’s totally optional, and if you’re getting path overload I can understand that. I just wanted to bring it to your attention in case it turns out to be a good resource for you.

Excuse me, may I smell your MHCs?


Here’s a little more info on the sweat/MHC study we talked about yesterday. It seems that women prefer mates with MHCs very different from their own. That seems like a good idea – it helps provide diversity within the genome. It would be hard to get a sample from every guy and bring it to the HLA-typing lab, but no need: the brain can detect MHC differences by smell (they’re associated with pheromones)! Weird. And cool.

More on MHCs

Q. I have a question on MHC receptors being polymorphic, you used the ice cream example about all of us have “different flavors”… but does that mean your MHC receptors are all the same, but just different from all of mine, which are the same as each other ? Or are all MHC receptors polymorphic? Continue reading “More on MHCs”