At this singular time in history when 7.8 billion humans on this planet are facing a common enemy, too tiny for us to even see, our weapons are hand washing, and social distancing and isolation.

My 2020 AtoZ Blog was originally going to be about genes, epigenetics and healthspan. But instead I found myself thinking about how, today, our world is connected rather than distanced. Travel is a modern day gift that introduces us to different cultures, different histories, different foods and different people. But this very gift that connects us globally has made us vulnerable to this pandemic.