Change Your Diet, Change Your Life, day-long seminar on nutrition, 9am-6pm, $125, Skirball Cultural Center, 2701 N. Sepulveda Blvd., LA, 310.260.0172.
Walk-a-Thon Benefit For Parkinson’s Disease Research, featuring Mayor Richard Bloom as official starter, 10am-12:30pm, free, Palisades Park, corner of Ocean Ave. and Colorado Blvd., 800.908.2732.
Maintaining Bone Health: Prevention and Treatment of Osteoporotic Fractures, lecture with Dr. Fred Singer, 10am-noon, Center For Healthy Aging, 2125 Arizona Ave, 310.576.2550 x390.
Freedom From Smoking, an 8-session smoking cessation course, is being offered by St. John’s Health Center, 1328 22nd St., Mondays and Thursdays 12-1:30pm. Cost is $80, advance registration required, 310.829.8453.
Dance and Live Fiddle Band, the California Dance Cooperative holds contradances (which is sort of like square dancing, only more fun) on the first and fourth Saturday night of every month, Brentwood Youth House, 731 S. Bundy Dr., 7:30pm, all ages welcome, $9, 818.951.2003.