Because scientists who are on the cutting edge of technology and human health could create a new medication or new machine that could diagnose or cure someone before it gets too bad to cure.
Hope this helped : D
The answer for that is 3,500
Katrina learned about curling by watching and focusing on the techniques used by the olympic players. By watching so much, she learned the movements and basic rules of the game. This is an example of visual learning which is also cognitive learning :-)
