In other words, I feel that the biological effect of stress is to put sugars up, but ...
at some point, a correction will be needed via insulin (where insulin dependent) and this I feel is step 1 in where stress can lead to a hypo.
There may be more factors at work here, but in countering higher blood glucose levels, a hypo is always there ready to strike.
Step 2: The fact that one is stressed can mean that it is significantly harder to notice a hypo coming on, and therefore bad hypos can commonly result.
That's my personal theory at least :?
Benedict