to cause to hold or exhibit a particular bias; to influence, especially unfairly: a tearful plea designed to bias the jury; a survey biased toward highly educated people. 11.
Moles are caused when cells in the skin, called melanocytes, grow in clusters or clumps. Melanocytes are distributed throughout your skin and produce melanin, the natural pigment that gives your skin its color.
These findings indicate causality, where the abuse is the cause of the obesity later in life. However, not everyone who is subjected to abuse will develop obesity, and not all obese individuals have been abused, so there are obviously other causes too.