Studies show Tea benefits HIV & Dementia

A powerful anti-oxidant found in black tea called Theaflavin is proving to show multiple benefits for HIV or Dementia patients..

though this is still early and scientists are discovering more as we speak it does paint a ray of hope


http://en.wikipedia.org/wiki/Theaflavin
HIV and dementia
Several tea polyphenols, especially those with galloyl moiety, can inhibit HIV-1 replication with multiple mechanisms of action. Theaflavin derivatives have been found to have more potent anti-HIV-1 activity than catechin derivatives in laboratory investigations.[2]
Epigallocatechin gallate (EGCG), a catechin in green tea, binds to gp120, which works in conjunction with gp41, itself blocked by TF-3 (a theaflavin), both receptors of which HIV hijacks to enter into healthy human immune cells. Therefore, former and latter compounds have considerable potential to block HIV entry, though in real life situations other factors may complicate matters. More studies need to be done. See List section below.
Like EGCG, Theaflavins and Thearubigins compounds found in black teas penetrate the blood brain barrier, and have been shown to be effective against dementia in aging as well as AIDS related dementia plaques in vitro.