I came across an interesting article from the New Scientist magazine, Arguments dramatically slow wound healing, in which researchers in the US have demonstrated that having a 30 minute argument with your spouse can delay healing time for a wound by up to a day. In addition, hostile couples were estimated to heal at only 60% of the rate of couples with low hostility. The research was carried out on young and healthy couples, presumably the elderly and immunosupressed would have an even harder time of it.
More proof of the mind-body connection and how our mental state can affect our physical wellbeing. It’s yet another good reason for working out your disagreements with EFT or some other process. For an EFT approach you might like to try out the suggestions in Composting for beginners and Dealing with difficult people for ideas on how to reduce the negative effects of arguments and the argumentative.