HMSA flu shot clinics are canceled because of lack of vaccine. www.hmsa.com.

Information on Medicare Prescription Drug Coverage, series of sessions to give the public an understanding of their options, sponsored by HMSA, ongoing classes at HMSA offices on O'ahu, Maui, Kaua'i and the Big Island through Nov. 28; free. Schedule and information at www.hmsa.com. Registration required: O'ahu: 948-5555; Neighbor Islands, call your HMSA office.

Relay For Life Kickoff Rally, 5-7 p.m. today, Hau'ula Beach Park Pavilion; free entertainment, guest speakers, refreshments and door prizes; team packets will be available; Ko'olauloa Relay for Life takes place April 21-22. 286-6180.

Wellness Center Expo, 10 a.m.-5 p.m. Saturday, Unity Church, Diamond Head Circle; speakers, healing modalities, music by Zachariah and Paul Morsa, food booths by India Cafe and Volcano Joe's; free.

Are Humans Designed To Eat Meat? a presentation by Dr. Milton Mills, 7 p.m., Saturday, McCoy Pavilion, Ala Moana Beach Park; free; also "Treat and Cure Diabetes," 7 p.m. Thursday, Castle Medical Center, Kailua; free. Registration: 263-5400.

Chinatown Health Fair, 9 a.m.-1 p.m. Saturday, King Street side, Kekaulike Mall; health checkups by medical professionals, including hepatitis B, cholesterol, glucose blood and blood pressure tests and height and weight measurement; free, sponsored by United Chinese Society of Hawaii.

Shriners Hospital for Children, conducting screening exams to identify children younger than 18 who can benefit from their free orthopedic care, 9 a.m.-1 p.m. Saturday, 1310 Punahou St.; free. 941-4466.

Chemotherapy and Herbal Treatments: Does One Affect the Other? lecture, 3-4 p.m. Nov. 17, Straub Clinic & Hospital cafeteria; free; light refreshments. Registration required: 522-4336.

Infectious Diseases that people in Kona need to know about, 6-9 p.m. Nov. 17, Kona Outdoor Circle Education Center & Botanical Gardens; talk by Rep. Josh Green, M.D., on bird flu, hepatitis B and C, HIV, drug resistant staph infections and ocean pollution; food, cultural entertainment; free.

Bladder Health Hotline, 2 a.m.-2 p.m. (7 a.m.-7 p.m. EST) Nov. 17, confidential advice on overactive bladder by healthcare professionals; free. (866) 874-3246.

Lung Cancer Awarenss Walk, candle-lit walk to support those with lung cancer and their families, 4-9 p.m. Nov. 19, McCoy Pavilion, Ala Moana Beach Park; $25 donation benefits Breath of Hope Hawaii. 625-6265.

ONGOING

Freedom from Pain, series of classes with Brett A. Sloan on how to reduce pain from inflammation and injury through nutrition, 6 p.m. Fridays, Airport Center Chiropractic Clinic; free. 834-8662.

Elegant Exercise, yoga and movement for beginners, dancers and runners, taught by Reiko Seno, 7:45-9 a.m. Saturdays, Mondays and Wednesdays, Aloha Activity Center; $15 per class, $50 for four classes. Call for schedule: 348-4217.

Masakatsu Ki-Aikido Dojo, instruction for children (5 and older) and adults, 8:30-10 a.m. and 7-9 p.m. Saturdays, 1007 Waimanu St., second floor; monthly fees are $15 for children, $25 for adults; discounts available for families. 487-6080.

JJ's Swim & Fitness Clinic, lessons for beginners and physically challenged, 10 a.m. Saturdays, Magic Island lagoon; $7 per class; bring suit, towel and goggles. Call to verify class location each week: 373-3839.

Mindfulness Meditation, develop inner peace, emotional awareness and stability and reduce stress through insight meditation, 4 p.m. Saturdays, Broken Ridge Korean (Buddhist) Temple, Palolo Valley; free. 395-7749.

East West Qigong International holds qigong classes Saturdays-Thursdays at various times and locations. For schedule and details: 941-9707, www.eastwestqigong.org.

Aikido classes, with the Aikido Ohana and instructor Alan Nagahisa, 8-9:30 a.m. Sundays, 6:30-8 p.m. Tuesdays and Fridays, Higashi Hongwanji Mission, 1685 'Alaneo St.; $20 per month for three classes per week. 221-8656, www.aikidoohana.org.

Butoh movement workshop, exercises to develop sensory and spatial awareness through dance and spoken word, 3-5 p.m. Sundays, Japanese Cultural Center, Kenshikan Dojo; $30 per month. 387-4861.

Yoga Under the Palm Trees, join others in yoga practice, 8-9 a.m. Mondays, between the Waikiki Aquarium and the Natatorium; bring a mat or towel; free, donations accepted. 373-8833.

Balance and Fall Awareness, balance testing and fall risk screening, Mondays-Fridays, Balance Center of the Pacific, 600 Kapi'olani Blvd., Suite 404; free. 955-8339.

Balance and fall prevention screenings, Mondays-Fridays, Ohana Pacific Rehab Services; free. Honolulu office: 591-9420; Kailua office: 262-1118; www.ohanapacificrehab.com.

Stroller Strides, workout and play for mothers and outdoor activities for their babies in strollers, 8:45 a.m. Mondays and Fridays at Kapi'olani Park, and 8:45 a.m. and 5:15 p.m. Wednesdays at Magic Island; $10 per class (discount for multiple classes); ongoing classes also in Kailua and Waipi'o. 371-6904, 783-5701, www.strollerstrides.com.

Exercise class, led by Paul Bragg, 9-10:30 a.m. Mondays-Saturdays, Fort DeRussy Park; free.

Tai Chi For Arthritis, sponsored by Arthritis Foundation, 3, 4:15 and 6 p.m. Mondays and Wednesdays, Tenrikyo Honolulu Ko, 349 N. Judd St. Call for class fees and registration: 566-7231.

Dohwaje, introductory class in Taoist yoga and breathing meditation, 2, 4:30 and 6:30 p.m. Mondays-Fridays, 1507 Kapi'olani Blvd., Unit 10; $5. 521-2478.

Panther System Hawai'i, consciousness physics for awareness and self-healing, 6 p.m. Mondays, 661 Auahi St., No. 203; $10. Register: 561-2585.

Body Works Hawaii offers classes in low-impact aerobics, Pilates, Latin- and '50s-music workouts, and cardio kickboxing, 6-6:45 p.m. Mondays, Tuesdays and Thursdays, Kuhio School cafeteria; $1 per class, join anytime. 735-5755, 377-5132.

Yoga is for Every Body, class in Kundalini and hatha yoga taught by Amber Ricci, 6-7:15 p.m. Tuesdays in Hawai'i Kai; $10 per class or $45 for five classes. 396-6715.

Qi gong classes, improve health of the body and mind through exercise, meditation and teachings from ancient Chinese practices, sponsored by Falun Gong, 6:30 p.m. Tuesdays and Thursdays, Ala Wai Park, 480 University Ave.; free. 943-6664.

40 Minutes to Health, workshop on maintaining your health naturally, presented by Mark Hoffman, 6:30 p.m. Tuesdays, Island Family Chiropractic; free. 596-0599.

Send announcements, with contact name and phone number, to: Health Calendar, Island Life, The Advertiser, P.O. Box 3110, Honolulu, HI 96802; islandlife@honoluluadvertiser.com, with "Health Cal" in the subject line; or fax 525-8055.