Knock on wood!
"Touching rough wood results in a beneficial lowering of blood pressure. Did you know that contact with nature generates a decrease in the activity of the ventromedial prefrontal cortex, an area of the brain associated with negative ruminations, and an increase in alpha waves embematic of a state of relaxation? So, put your hands in this trunk and then go out to enjoy the park and nature!!
This trunk comes from a tree uprooted by the storm. The park is maintained by 2 full-time gardeners who also participate in its reforestation."