Some beings, particularly the Sith, believed that the dark side of the Force was more powerful than the light, though it was possible that the dark side was just more tempting to those who used or desired to use it. Though the Force was thought to flow through every living thing, its power could only be harnessed by beings described as Force-sensitive. This Force-sensitivity was correlated with, and sometimes attributed to, a high count of internal microorganisms called midi-chlorians that were found in a Force-sensitive's blood: the higher the count, the greater the being's potential Force ability, though there were some exceptions to this rule. Force-sensitive beings were able to tap into the Force to perform acts of great skill and agility as well as control and shape the world around t