breath

everyone knows you inhale n exhale while performing a rep. wwll my problem is that(I don't know if it is one)it seems the more weight I use, the more oxygen I need therefore I need to inhale n exhale twice maybe 3 during a rep. is that normal? or does that mean my body isn't getting enough oxygen?

It could mean that you have smaller lungs. I used to swim in high school and we would build up our lungs by swimming lap/s underwater. I've always been able to hold my breath underwater for a long time. I have asthma too and I know I have to breathe more when I have an asthma attack to get the same amount of oxygen because my bronchial tubes are constricted and prevent oxygen from being absorbed. You could have your doctor measure your oxygen levels to make sure everything is right. It's basically a small little monitor that goes over your finger and determines the percentage of oxygen your body is absorbing. If you have pneumonia or any other ling problems, the level will be lower.