Intriguing

A common HIV drug has been shown to improve the connections between memories in aging mice. The findings could help reveal how contextual events are remembered in the human brain, and why this becomes harder as we age.  The HIV drug, known as maraviroc, acts on a cellular protein known as CCR5, which sits on the surface of white blood cells. When the HIV virus connects with one of these receptors, it can enter the cell and replicate. But if maraviroc gets there first, it blocks the entrance.And that's not all it does. In…