without packing the lungs or lowering heartrate or any special prep, how long can you hold your breath off a normal inhale? 
Discussion
35 seconds off a normal inhale, 45 seconds off a big inhale.
So not great lol
What is packing the lungs?
Did this with a friend a few weeks ago, got to 1:18. Surprised myself, had never done it since I was a child
well done!
On a very normal nasal inhale I got to around the same:
All individual, but generally, the more relaxed you can remain during retention, the longer you'll last.
When doing the Wim Hof breathing exercise, after several rounds I can reach 5+ minutes retention without force on an exhale (!). I enjoy that mega depth from time to time 😇
Are you allowing yourself to slowly exhale while you're timing? Because 1:06 is easy without lungs full of CO²...
no
Underwater or sitting still?
sitting.
Just now, 1:12 if I just stop breathing. 1:24 if I stop deliberately at the top. 1:41 if I pack. I did them in that order. They'd go up if I repeated the test though, and they'd go down if I was under stress 😏
Aside from swimming, I do breathing exercises as a habit, daily or even hourly. Helps keep my relaxed, but I guess that in turn helps me hold my breath a bit longer.
nice work!!
With the wim hof method I was able to get close to 2 mins the first day (took a few attempts). I was honestly surprised. Like a lot of things in life, a lot of it is mental to push through.
In your case without doing that I’d be surprised if I got over 45 seconds.