Maintaining a stable heartbeat is critical for survival. Your heart must constantly adapt its output to meet changing demands for oxygen and nutrients. Traditionally, scientists have attributed this ...

Everyone knows that the brain influences the heart. Stressful thoughts can set the heart pounding, sometimes with such deep force that we worry people can hear it. Anxiety can trigger the irregular ...

The human brain is one of the most complex organs in the world, and it consumes a lot of the energy that people take in by eating food (about 20 percent of the daily calorie intake). To make it more ...