Speed. This is more of a physics question.
Answer:
Everyone is raised differently, some people are used to handling certain situations better than others. For example, if someone is raised in an area with lots of sunlight and warm temperature and they decide to move to somewhere cloudy and cold when they grow up, the dramatic difference between temperatures could make this person 'crazy' and unable to adapt to simple situations in this climate, regardless of how easy it is to handle for others. This could be a metaphor for many situations.
One of the negative impacts of eutrophication and increased algal growth is a Loss of oxygen known as anoxia
