Should I help my wife?

Perhaps, a trampoline with a high bouncing quality strategically placed under the branch of the tree on which she sits might be of use. There is a danger, however, in that she might find it a complicated matter to hop down onto the trampoline and the matter of bouncing up and down for a considerable amount of time might really mess up the contents of her head in a considerable way. Or, perhaps, she might miss the trampoline by some unfortunate turn of fate and land on the ground instead. In such case, you might consider to protect her bottom by gathering all the feather beds you might find in your household and place them strategically around the trampoline.