This video shows in 4 seconds why you should sneeze or cough with your hand (or even better:your elbow) in front of your mouth.
Bacteria
When you sneeze or cough, you spread bacteria throughout the room you are in at an enormous rate. Your sneeze can even reach a speed of 150 kilometers per hour.
High speed
The video was made by researchers, who thanks to this research discovered that the bacteria spread up to five times more than we initially thought.
