What’s the difference between ‘affect’ and ‘effect’?
AFFECT is a verb which means “to influence” or “to make a difference”, for example:
An absence of chocolate greatly affects my ability to think.
EFFECT is a noun which means “result” or “consequence”, for example:
For best effect, start with a good cup of coffee.
The EFFECT of the coffee could be felt for days as everyone was AFFECTED by the burst in productivity.
Full disclosure: I get these two mixed up all the time! I’ve simplified the definitions and usage in this post – effect can also be a verb meaning “to cause”. Confusing, right?!