There's new evidence that repeated concussions have long-term impact.
A small, rugged device is reliable even in harsh conditions.
Geron will begin clinical trials of its therapy for spinal-cord injury this summer.
A microscopic gripper captures tissue when triggered by biochemical cues or temperature change.
An event making headlines in Britain is already happening under the radar in the US.
Scientists are creating anti-doping tests earlier and earlier in drug development.
Taking advantage of electronic health records.
Dubious stem cell therapies are being advertised directly to consumers via the internet.
Members of Obama's transition team warn that the United States has not taken seriously the threat of bioterrorism, and that some chemical plants are potential targets.
Researchers have found a molecule that could help fight obesity.