Merge Labs, a brain-computer interface startup that seeks to read brain activity using ultrasound, is being spun out of Forest Neurotech, a Los Angeles nonprofit.

Science Corporation, founded by Neuralink’s first president, Max Hodak, has unveiled a prototype machine to extend the life of organs for longer periods.

At an FDA discussion of testosterone replacement therapy, a top official called for special health centers to address a “men’s health crisis.” Others called to ease men’s access to hormones.