The following self help and motivational insight has been adopted from Carmine Gallo’s book Talk Like TED

“Science shows that passion is contagious, literally. You cannot inspire others unless you are inspired yourself. You stand a much greater chance of persuading and inspiring your listeners if you express an enthusiastic, passionate, and meaningful connection to your topic.”

Adopted from Carmine Gallo’s book Talk Like TED

This is why passion spreads as a disease.