I've noticed as I've gotten older that my hands tend to get colder faster when outdoors in the winter. This is especially annoying skiing in the winter where I feel I have to be even more mindful of preventing frostbite then I had to when I was younger. It seems that the general circulation to my extremities has diminished over time.
I'm wondering if there's any exercises or any dietary way I could improve the ability for my body to keep my hands and feet warm? Either long-term preventitive or something I could do right before I go outdoors?
I should add I'm 30, I run regularly (5km most days) and try to eat a fairly reasonable diet.