The most obvious ways that design can improve physical health is by not actively harming users—off gassing fatal to inhale chemicals, being appropriate ergonomically, etc. Once all of the active threats are eliminated from a space (the flow of dangerous fumes is stopped, the ergonomic chair is assembled and wheeled into place, etc.) there are other things that design can do to improve our physical health. It can keep our stress levels in check. When our stress levels go down,…