I have a Forerunner 255 Music.
My respiration rate during sleep had been very level, 12 brpm, for months. Suddenly, starting January 18, the rate became higher, and fluctuating, daily. it has continued like that ever since.
I wonder whether something changed in my health, or whether my watch changed....perhaps becoming more sophisticated in its measurement ability.
A system update, perhaps? I don't remember the dates of various system updates.
Any thoughts would be greatly appreciated! Thanks
