Not allowed to have a life - ever
Is how you sum up the life of an "IT Pro". You are expected to be available 24/7 on a whim, cancel whatever plans you have (you soon learn not to make concrete plans of any kind) to answer the call of work. You are expected to check in via email and answer cell phone even whilst on vacation. You develop unhealthy eating habits due to long hours and unpredictable breaks. Your mental health suffers as a result of irregular sleep patterns. This leads to a dependency on sleep aids as well as caffeine or perhaps something stronger to help maintain alertness.
There is a thick, short chain that runs from your neck to your workstation. You can't see it, but it's there.
There is NO ONE who loves this kind of existence for an extended length of time. It is done out of necessity, not because "us lot love our jobs".