The substantia nigra is a motor nucleus located in the basal ganglia of the midbrain. This brain structure contributes to the body's cognitive and motor functions by sending signals to initiate or ...

Researchers report a previously unknown role of ganglia, clusters of nerve cell bodies, in sleep disturbances frequently experienced by people with heart disease. Approximately one in three people ...

Headaches such as migraine are among the leading causes of morbidity worldwide, but most treatments provide only partial relief. While scientists know that migraine and related headaches are caused by ...

Nearly 40% of people experience syncope, or fainting spells, at least once in their lives. These brief losses of consciousness, whether brought by pain, fear, heat, hyperventilation or other causes, ...