That sounds like really good news. I had only heard of a negative impact of cold water swimming.. my Doctor said he knew that I do cold water sports because it causes changes in the ear canal. It's actually called Surfer's ear (not to be confused with swimmers ear).
I'm sure it causes some hearing issues, because it makes me tune out all of the Honey-do lists when the waves are up
https://en.wikipedia.org/wiki/Surfer's_ear"In general one ear will be somewhat worse than the other due to the prevailing wind direction of the area surfed or the side that most often strikes the wave first.
My ear struck lots of 40 degree slabs while wearing a questionable 1990's wetsuit hood
"The majority of patients present in their mid-30s to late 40s. This is likely due to a combination of the slow growth of the bone and the decreased participation in activities associated with surfer's ear past the 30s. However surfer's ear is possible at any age and is directly proportional to the amount of time spent in cold, wet, windy weather without adequate protection."
Posted: Mon Oct 19, 2020 3:15 pm