Does restarting desktop each day have any adverse impact?

For a long long time, I have the habit of restarting my machine before I leave work, at the end of the day. Before this habit I used to shut the desktop off.

My coworker said that sometimes “restarting” everyday could adversely affect the computer. He talked about variances in temperature and what not. To put it simply I did not understand 🙁

So here is my question: Does restarting the desktop each day reduce its life compared to restarting it less often? Or does it in anyway have a negative impact on the desktop?