Query regarding city growing limits

[turdish]

What are the city limit rules this time around? All my cities are adjacent to rivers and lakes so i have no problem growing them to 11, but they stop at that and dont get any bigger.
I know in civ3 you need aqueduct, hospital to grow cities past their limits, but i cant seem to find anything regarding this in the manual/civpaedia.

 

[Romanichine]

There is no population cap based on building like in previous Civs. Your city can grow to any size as long as you have an overflow of food.

--
Roman

 

[Pfeffersack]

In fact the fixed limits are replaced by a dynamic system - health.Without a healty environment around the city, certain building or health ressources, growth will stop soon, because unhealthiness begins to eat more and more food.