Your computer keyboard is one of the dirtiest areas in the house. Go back to your old typewriter. Once that becomes filthy, haul out your old printing press. After that, get your obsolete first-generation Kindle.
It is well known that reading about sickness, especially on the Internet, can lead to hypochondria and, in fact, weaken the immune system from the stress of imagining the symptoms that might befall you. Therefore, never read about sickness on the Internet, particularly if you are already an anxious person. To repeat: reading about sickness on the Internet will only compound your anxiety.
Source: The New York Times