Sometimes considered a modern day effect, heart disease has now been found In a 3500 year old mummy. I am not so surprised, as clogged arteries must have existed for just as long as mankind has. If the mummy had open heart surgery I would indeed be very surprised.
Hardening of the arteries was found in 9 out of 16 mummies, and one of the doctors involved in the study speculated that hypertension due to salted meats and high meat intake might have contributed. The full article can be found at the current issue of The journal of American Medical Association.