I greatly enjoy starting my day with a mug or two of expertly-made, high quality coffee.
However, its important to recognize that - no matter how excellent the coffee -
feeling physically or mentally unwell in the morning is a signal that something might not be right with your overall lifestyle.
A great many people try and function with a serious sleep deficit. Blame the internet, overly garrulous friends, cable TV, or just plain bad habits - many of us simply don't get enough sleep on a regular basis. Most normal humans need between 6 and 8 hours a night. If your schedule isn't giving you this most nights, you are inevitably going to suffer. Physical and mental problems will inevitably arise. Many people try and catch up on weekends, but lying abed till noon on weekends only serves to further disrupt ones sleep cycle.
If it is the prospect of spending your waking hours at a job or institution of higher learning that fills one with dread - then it seems you might want to reassess the path you are following in life.
I need hardly mention the fact that if one awakes with a throbbing headache, disordered bowels, jaundiced complexion and bloodshot eyes as the result of overconsumption of alcohol - on a basis that is in any measure "regular" - then you need to make lifestyle modifications.
Coffee is great.
Its health benefits are becoming more apparent. But its not a bandaid for a broken lifestyle.