Mark, a 64-year-old with amyotrophic lateral sclerosis, or ALS, uses Amazon Alexa all the time using his voice. But now, thanks to a brain implant, he can also control the virtual assistant with his ...

Prolonged mental fatigue can wear down brain areas crucial for the individual ability to self-control, and cause people to behave more aggressively. In a new multidisciplinary study published in the ...