| Just a wild guess here...
I lift regularly now. Often I catch myself straining, holding my breath, grimacing my face etc. while doing various lifts. I catch myself because I learned somewhere long ago that this is bad form. I quickly revert to relaxing everything but the muscles being targeted by the specific exercise at hand. I try to go through my entire routine that way, relaxed. Deliberate and controlled breathing. It seems a little weird, unnatural even, but I think it might be much better.
Maybe the danger in lifting is only if you "do it wrong". I'll ask my daughter - she's a personal trainer.
__________________ T2 Dx 9/2007 A1c 8.8, 12/2007 6.0, 4/2008 5.7, 9/2008 6.1
No meds, daily 81mg aspirin and multivitamin, nutrition & exercise.You can call me   Postcard exchange #2: 20 out & 17 in, exchange #1/2: 9 out & 4 in | 
