Information on Medicare Prescription Drug Coverage, public sessions sponsored by HMSA, 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.

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

Infectious Diseases, talk by Rep. Josh Green, on avian influenza or bird flu, hepatitis B and C, HIV, drug-resistant staph infections and ocean pollution, 6-9 p.m. today, Kona Outdoor Circle Education Center & Botanical Gardens; free with food and cultural entertainment. (808) 329-7286.

Bladder Health Hotline 7 a.m.-7 p.m. EST (2 a.m.-2 p.m. Hawai'i time) today; free, confidential advice on overactive bladder by healthcare professionals; call (866) 874-3246.

Relaxing Eye Strain and Neck Tension workshop, gentle exercises and acupressure points for relaxation led by Marie Riley, 9:30-11:30 a.m. Friday, Windward Community College, Hale Kuhina 115; $9. Registration required: 235-7433.

Learn at Lunch brown bag session on Alzheimer's Disease, noon Friday, 1136 Union Mall; free. Registration required: 545-2772.

Body & Earth Workshop, experience breath, sound and contemplative dance and how they relate to the body's healing process, 6:30-9:30 p.m. Friday and 9:30 a.m.-5 p.m. Saturday, Calvary by the Sea Lutheran Church; dances shared at 10 a.m. Sunday service; $15 Friday, $75 Saturday. 386-8883.

Caregiving at the End of Life, Barbara Shirland and George Osakoda discuss caregiving, hospice and funeral planning, 8:30 a.m. Saturday, Central Union church, women's building; free. 988-6300.

Kaua'i Diabetes Awareness Day, lectures on various natural therapies and blood sugar monitoring, 9-4:30 p.m. Saturday, Kaua'i Beach hotel, Lihue, Kaua'i; free (808) 638-0888.

Runners Clinic, injury prevention and foot assessment, 2-5 p.m. Saturday, Fleet Feet Sports, Kailua; free. 262-3278.

The Role of Acupuncture in Health and Healing, lecture by Dr. Gary Deng, and Dr. Joni Kroll, 3-5 p.m. Saturday, UH-Manoa Spalding auditorium; free. 941-8253.

Tour de Cure fundraising bike ride from Kapi'olani Park 7 a.m. Sunday; $35 registration fee benefits the American Diabetes Association. 947-5979.

The Interactional Instinct: the Evolution and Acquisition of Language, lecture by John Schumann, professor of applied linguistics at UCLA, 3:30-5 p.m. Monday, Intercultural Communications College, 1601 Kapi'olani Blvd. #1000; also, lectures 11:30 a.m.-12:30 p.m. Monday, UH-Manoa Korean Studies auditorium, and 10-11 a.m. Tuesday, Brigham Young University Hawaii at La'ie, GCB 185; free to The Neurobiological Learning Society members; nonmembers $10 general, $5 students on a space-available basis. 946-2445.

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 for one 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.