i mix coffee and tea
today i had all thsi tea left over so i just mixed the two add ice cream if you want
tea is good to lower cloresterol and cofee is good for depression
some coffee is defintley bad -the cheaper robusta coffee -id avoid it like the plauge and it keeps me awake
the yuban or starbucks type i can even drink at night and usually it wont keep me awake
http://en.wikipedia.org/wiki/Coffea_canephora_(robusta)