Originally Posted by Marylandnewbie
Its particularly good in cold weather becasue your nose acts like a warmer for the air before it hits your lungs. Maybe by wintertime I will be in sufficient shape to actually try it out.
That's true, but it also makes your nostrils colder.
Up here, I spend much of the coldest part of winter wearing something over my nose to keep it warm, which also tends to make it run, so breathing through it is harder as well as less desirable.
