Pandemics, diseases which spread to most populated regions with a high degree of mortality, have been recorded several times in world history, the first being the Plague of Justinian in 541 CE. The Black Death, also known as the Second Pandemic, was one of the most catastrophic events in human history.
"A personal flexibility goal could be to walk 20 minutes a day. You can accomplish this goal by watching less TV. Yo can go with a friend. To know you reached your goal make a chart of your progress. Whether or not you are in maintenance or relapse"
I would say its 2. Working with harsh chemicals
