Conversations with friends and acquaintances have revealed that I am not the only one who suffers from concentration problems when working from home. The other day, a friend reported that she seemed to have overcome her lack of concentration. I first asked if she had managed it with medication. That might have been the route I had chosen, had my friend not now told me of her successes. She said that - in order to be able to concentrate better - she has changed a few things in her home office. For example, she put curtains on the windows and created a whole new lighting concept in the room, and she also changed the lamp. She also bought a houseplant, a dragon tree. This plant is supposed to act as an air filter in the room, as it can absorb...