why are football matches “at home” or as “visitors” treated like an advantage or disadvantage?

Question

is there any way in which this fact could affect a match by itself?

In: 8717

Answer 1

For Seahawks (American football team, seattle) – the year they won the Super Bowl they also had the record for the loudest stadium. Meaning, when the away team was on offense and the offensive players have to listen to their quarterback it becomes very difficult resulting in mistakes. When the home team (Seahawks) where on offense, the stadium was a lot quieter.