Box jellyfish have no brains, yet were recently found to be able to learn from touch. Many brainless organisms are now forcing us to rethink what it means to learn.
Deep brain stimulation can help some people with treatment-resistant depression feel better, but it can be unclear whether a bout of low mood is a relapse or a bad day.
From dopamine hacking to dopamine detoxes, some people have sought to harness this brain chemical to improve their mood and productivity. But it’s far more complicated than that.
Although emotions like fear and anxiety originate in your brain, they ultimately travel through your body and make your heart race and your stomach twist.
While there is no guarantee of warding off cognitive decline, encouraging people to be physically, mentally and socially active could potentially keep a significant number of dementia cases at bay.
Seizures are like sudden electrical storms in the brain that can cause lasting damage. A set of immune cells in the brain called microglia may provide protection.
New research may upend our understanding of the brain, showing that travelling waves of neuronal excitation dominate the activity associated with our thoughts and feelings.
Transcranial alternating current stimulation, or tACS, is a type of brain stimulation that can change neural activity and improve memory, attention and executive function.
Pain has long been subjectively measured, leading to frustrations for patients and doctors alike. Identifying neural biomarkers of pain could improve diagnosis and lead to better treatments of chronic pain conditions.