Scientists found evidence of two interleaved systems, which may help explain the connection between what's going on in our bodies and what's going on in brain areas involved in thoughts and emotions.

The seemingly simple act of reaching for a cup of coffee requires a lot of effort from the brain. It has to plan a trajectory to the cup, control dozens of muscles, make adjustments based on feedback ...

It has to plan a trajectory to the cup, control dozens of muscles, make adjustments based on feedback from the eyes and fingers, and maintain its focus on the goal: a tasty jolt of caffeine. And it ...