I've noticed that extreme cold seems to be a trigger for afib episodes for me. Not all the time, but when I'm getting my heart rate up and sucking in that cold air into my lungs.

Nancy

Very plausible. This mini ice age that North America is in right now will certainly trigger an adrenaline response as your core temperature gets clobbered by a deep breath of 0 degree (F) air!

Stay warm!

May not be applicable but I do cold baths: 20-30 minute soaks in 50 deg F water. I usually do them daily after a sauna session. The baths will slow my heart rate significantly - a vagal response. Noticed today, the third day of a fast, that I could feel some PAC's upon entering the water. The fasting is pertinent as my core temp usually drops as I get 3 or more days into fasts (my habit is to fast 5 consecutive days of every 14). So today I decided to pay attention to the PAC signals I was getting and abort the fast early and go for a walk in shorts, sandals & a t-shirt in the 25 deg Colorado morning, this did not provoke PAC's. As air is much less conductive of heat than water, 25 deg air doesn't have the same impact as 50 deg water.

In any case, the cold air might be provoking a vagal response for you.

George

I always wear a scarf and breath thru it when I'm outside in winter. The cold is a def trigger for me.