Excellent post, Karin.  Leaders can take the pressure or stress off by offering information to their team.  When our brain has to rely on guesswork, mind reading and assuming it gets overly taxed and stressed out!  Besides, typically when we are already under stress, we desperately "need to know" something and in the absence of information, our brain will make stuff up .... and usually for the worse!  It's amazing what a little information offered by the leader to the team will do to relieve stress ...