I tested the Muse S Athena, a $475 brain-training headband that combines EEG and functional near-infrared spectroscopy to measure brain activity and oxygen levels to give you real-time feedback.

InteraXon, the makers of the Muse wearable EEG, believe it’s made a big leap ... The Muse S Athena uses the same hardware-and-headband combination from the Muse S, which lets you wear it to ...

The old system, using EEG, provided great insights into focus and relaxation ... The key to training with the muse headband is through the app. For everything from making sure the headband is fitting ...