Is your biological (inner) age younger or older than your real age? Learn how to determine your ‘inner’ age and what lifestyle changes you can make to help you live longer and healthier. A free seminar will be held on Wednesday, November 4 at 6pm at the Leventhal-Sidman Jewish Community Center (333 Nahanton Street) in Newton. The seminar is sponsored by InsideTracker, a health analytics company that tracks and analyzes key biochemical markers and offers personalized nutrition and lifestyle recommendations. The seminar is open to the entire community. RSVP to fitness@jccgb.org.