19 nors are known to be harsh for sides and recovery, but there is medication which can be used to help and in most cases stop the nasty sides what 19 nors can bring on. The major problem what I had was recovery because this period is vital for maintenance of the new found muscle, the benefit of 19 nors within a cycle can be huge and usually its just finding the right stack and dose which suits your body which gives results and low sides.