text: is there any way to tone and make my arms thinner without lifting weights. any excercises or cardio?   pilates is fantastic. you don't have to use weights and it tones your whole body. there's plenty of classes and great home dvds available. just check out amazon.com. of course, if you don't burn off the fat tissue with some form of cardio your arms won't really look any different; kind of like all those people who do hundreds of crunches but still have a fat belly. their abs are great, but hidden under all the fat.