Breathless

This may seem a bit rude to you but let me start with a question:

Do you have asthma?

Asthma may not be a problem as big as world hunger but it's still important. So scientists started to try and erase all of the smaller sicknesses, and eventually getting to the bigger ones. Starting with asthma. But it went wrong and asthma soon became a bigger problem.

So big that if you breathed the fresh air around you, you would die.