Bradycardia is a condition characterized by a slower than normal heart rate. While a normal adult heart beats between 60 and ...

Whatever form it takes, successful treatment reverses the changes in brain circuitry that make substance use hard to control. Yet many factors other than biology must be addressed for treatment to ...

Circadian rhythms are governed by a master clock, a group of neurons called the suprachiasmatic nucleus, located in a region of the brain called the hypothalamus. This master clock translates cues ...