Stretching, as the prelude to starting to exercise, is very bad for you and really dangerous.
Don’t believe me?
You’re always supposed to start any new physical exercise slowly and not stress too much.
If I lean back in my chair to have a good stretch…
my chair is going to tip over;
my feet will fly up;
I will hit my foot on the underside of this metal thing attached to my desk;
bang my head on the floor behind me;
start seeing those little star thingies;
and be completely knocked out.
Obviously, stretching can cause unconsciousness!