I'm curious, my cheeks are always rosy red for some reason, even if i'm not cold! is there a reason or is it just genetics?

Many possibilities: Red cheeks are from the vasodialation of the vessles near the surface of your skin. Anger, embarrasment or stress can effect those vessles, also heat from excesize or fever can cause vessles to dialate to eliminate the heat. Alcohol causes capilaries to dialate as well. There are some medical causes of constant red cheeks such as rosacea or lupus. Your physician can diagnose that.