UC San Francisco’s Jason Gestwicki describes his lab’s work developing eye drops to reverse cataracts, a potential boon to millions of people who go blind every year in developing countries because they can't afford (or have access to) the current, successful surgical treatment.

Prions, long studied by UCSF professor and Nobel laureate Stanley Prusiner, build up in the brain to cause Alzheimer's and other dementias. Now they're linked to post-traumatic stress disorder in combat veterans and in the brain damage of athletes who have suffered repeated concussions.

The San Francisco Hepatitis B Collaborative offers free screenings for Hepatitis B (Hep B) and low cost vaccinations for community members every other Saturday at the Chinatown Public Health Clinic.