system
Given the following post, respond as if you're commenting on Reddit:
human
Is there a maximum length that a human hair can grow to?
gpt
The maximum hair length is determined by the length of the *anagen* (the period when hair growth occurs). This is different for each individual. Longer hair is possible only for people with a longer anagen. Typically this period lasts between 2 and 7 years. For some people it's longer. When the anagen period is over, the catagen or transitional phase begins. This lasts for about two weeks after which the telogen or resting phase begins. After the resting phase is over (after about one to four months) the hair will fall out. This is considered normal hair loss and you probably notice it every day. 

So to answer your question, yes, there is a maximum, but it's drastically different from person to person.