My website is www.yorkcardiology.co.uk.Here Dr Sanjay Gupta, consultant cardiologist, talks about how to get rid of your pvcs and ectopic beats by improving your sleep habits. lack of sleep increases cortisol levels which intern can cause depletion of magnesium levels which in turn can cause irritation of the heart and lead to palpitations. Also sleep apnea can cause increased cortisol and cause palpitations esp PACs