The Way to Chinese Health, with local nonagenarian author and health enthusiast Carolyn Choy, 2 p.m. today, Wahiawa Public Library; 12 and older; free. 622-6345.

Relay for Life of Kane'ohe Community, overnight benefit for American Cancer Society with musical performances, luminaria, relay race, volleyball, flag football, silent auction and keiki tent, 6:30 p.m. Friday-7 a.m. Saturday, Windward Community College Hale 'Akoakoa Great Lawn; free. www .acsevents.org/hi/relay/kaneohe.

Colorectal Cancer Awareness Day, presented by St. Francis Medical Center, with free screenings, also talk to experts about colon cancer and learn about prevention, diet and early detection, 9-11:30 a.m. Saturday, St. Francis Medical Center, Harry and Jeanette Weinberg Medical Pavilion; free. Reservations: 547-6410.

The Taiwan Cares Health Fair, free hepatitis B, blood sugar and cholesterol screenings; bone density, blood pressure and vision checks; consultations; and entertainment, 11:30 a.m.-4 p.m. Saturday, Chinatown Cultural Plaza; free; sponsored by the North American Taiwanese Medical Association, Hawai'i Chapter; Taiwanese Association of America, Hawai'i Chapter; and Hawaii Taiwan Medical Association.

Hawaii Bone Marrow Donor Registry Bone Marrow Drive, donors must be 18 to 60 years old and in good general health, noon4 p.m. Saturday, Windward Mall; free. 547-6154.

Introduction to Reiki for Seniors, demonstration workshop, 9-10 a.m. Monday, Windward Community College; free. Register: 235-7433.

Qigong Classes, improve vitality, flexibility, mental, physical and emotional well-being, 6-7:30 p.m. Mondays April 3-June 5, Kaiser Honolulu clinic and 6-7:30 p.m. Wednesdays March 29-May 31, Kaiser Moanalua clinic; $32 Kaiser Health Plan members, $39 general. Register: 432-2270.

Massage for Relaxation and Wellness, four-class session to experience and learn four styles of massage: reflexology, Swedish, premiere points and healing hands, 6:15-8:15 p.m. Monday, and April 10, 17 and 24, Kaiser Honolulu clinic; $32 Kaiser Health Plan members, $40 general. Register: 432-2270.

Tai Chi (Yang Style), improve mental and physical health through this Chinese martial art, 6:30-7:30 p.m. beginners, 6:30-8:30 p.m. advanced Mondays and Wednesdays April 3-26, Windward Community College, Hale Kuhina 115; $25 plus $15 lab fee. Register: 235-7433.

ONGOING

Luk Tung Kuen Movement Class, low-impact exercise incorporates 36 movements that improve circulation and unblock the body's pressure points, 8-9 a.m. Mondays, Fridays and Saturdays, Kahala Mall center court; free, no registration required.

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; donations accepted. 373-8833.

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

"Rejuvenate!," adaptive yoga for seniors, with standing, seated and optional floor exercises, intermediate yoga, 10-11 a.m. Mondays; level 1 basic yoga, 10-11 Fridays, Pohai Nani, Kane'ohe; $3 per class. 247-6211.

Tai Chi For Arthritis, sponsored by Arthritis Foundation, 3-4 and 6-7 p.m. Mondays and Wednesdays, Tenrikyo Honolulu Ko, 349 N. Judd St. Call for class fees and registration: 596-2900.

Body Works Hawaii 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. 735-5755, 377-5132.

Senior Safe Walk, mall-walk program for improved balance, breathing and joint protection, 7-8 a.m. Tuesdays and Thursdays, Kahala Mall; free. Register: 739-0140.

Aerobic Dance Class, by Anne Noyes, for all ages, 7:15-8:15 a.m. Tuesdays and Thursdays, Holy Nativity Community Center, 5286 Kalaniana'ole Highway; $4. 941-0390.

Goddess Dance Bellydance and Yoga Fitness for Women, combination of belly dance, salsa and yoga with a Pilates cool-down, 5:30-7 p.m. Thursdays, Moiliili Community Center; $12 per class. 255-9839.

"Fit for a Goddess," women-only classes using a dance pole for increased strength and flexibility, ongoing at various times and days, in Kailua and Kaimuki; $15 introductory class, $140 for eight-week session. Complete schedule: www.fit4agod desshi.com, 262-6979.

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.