What causes broken blood vessels....

Hi Everyone,

I would like to know what is the cause of broken blood vessels and spider veins on the face? I am very pale, and have a lot around the nose, under the eyes, chin, etc. Is it caused by hot and cold weather? I've read that one should not eat or drink hot beverages as well.. Anyone have a clue? Also, what can I do now to improve them, hopefully by natural means!

Thank you, Terry.