Some people have attached earlobes and some people have free earlobes the difference in these traits are caused by differences in the environment differences and personality differences in diet differences in genes
The difference in attached and free earlobes is primarily due to differences in genes. Attached earlobes are caused by a dominant gene while free earlobes are caused by a recessive gene. This means that if one parent has attached earlobes and the other parent has free earlobes, their offspring will likely have free earlobes because the recessive gene will be expressed.
Personality, diet, and environmental differences are not directly related to the earlobe shape. However, certain health conditions or diseases may affect the connective tissue of the earlobes, causing them to appear different in shape or size. For example, anemia or heart disease may cause the earlobes to become very pale, thin, or wrinkled.
In conclusion, while certain factors may indirectly contribute to the appearance of earlobes, the primary cause of attached or free earlobes is due to differences in genes.