Several of my students have told me that they are much less physically active in their home office. One thing they point to is the lack of interruptions from co-workers. A normal day at work would be punctuated by chats at the coffee machine, moving between meetings, and frequent small interruptions in person or on the phone. The lockdown home office is characterised by sitting in front of a webcam for hours at a time, followed by a few short steps to another part of the house at 5pm. Whatever your physical training routine might be, I am hearing that people are also missing that diversity of sensory stimulation and the mental space to process the days events.