Obstructive sleep apnea (OSA) is a sleep disorder in which breathing repeatedly starts and stops during sleep. OSA has frequently been linked to sleep bruxism, a condition where a person clenches and ...

For those whose lives have been changed by the need for a prosthetic, these devices offer far more than just physical replacement — they also provide emotional restoration. From artificial limbs and ...

While a number of groups are developing thought-controlled prosthetic hands, most of the devices require electrodes or other relatively fiddly electronics to be implanted in the amputee's body. Such ...

Researchers at the University of California Berkeley have created a tiny sensor, the size of a grain of sand, that can sit on a nerve, muscle, or organ and monitor the electrical signals passing ...