I work 12 hour shifts and I find it very difficult to squeeze stuff in. I find weightlifting beneficial and I enjoy it but I absolutely hate cardio which I find extremely boring. I do kick-boxing twice weekly anyways so it should cover the cardio. My question is does cardio do anything for fat loss or is it all calorie deficit. I suppose doing cardio would help with a deficit due to it burning around 2-300 calories per 40 minute session. I also walk a lot due to my job.