Cell Tech Co.: Dr. Erwin Gemmer speaks about the the expansion of the Cell Tech Co. and the health benefits of its blue green algae, 7-9 p.m. Friday, Sheraton Waikiki. Free.

Workshop: Learn about prenatal care, nutrition, exercise, physical and emotional changes during pregnancy, and signs of premature labor, 8:30 a.m.-12:30 p.m. Saturday, HMSA Center Building on Keeaumoku Street. Free. Registration required.

Workshops also available from 8:30 a.m.-12:30 p.m. on the outer islands on the dates listed: Kauai, June 21 at the HMSA HealthPass Office in Lihue; Hilo, June 21 at the HMSA's Hilo office; Kona, Hawaii, June 28 at the Salvation Army Kona Corps; and Maui, June 28, Cameron Center.

Call 948-6398.

"Heart Saver": Basic CPR, 8 a.m.-noon Saturday, Honolulu Clinic, Conference Room 1BC. Limited enrollment. Cost: $20-$25. Call 597-2260.

Sight seminar: "Pan-Pacific Laser Eye Institute Laser Vision Correction for Nearsightedness and Astigmatism," an alternative to wearing glasses or contact lenses, 6 p.m. June 19. Register at 547-2020.

SUPPORT GROUPS

Bereavement support: 1 p.m. Tuesdays, Castle Medical Center. Call 263-5343.

Brain Injury support group: For survivors, family, caregivers or friends, 7 p.m., second Wednesday of each month, Rehabilitation Hospital of the Pacific, 226 N. Kuakini St. Dining Room.

BreakFree from smoking: Support group for those fighting nicotine addiction, 7-8:30 p.m. Tuesdays, Castle Medical Center. Call 235-8737.

Breast cancer support group: For women recently diagnosed with breast cancer, 10-11:30 a.m. every second Monday, Queen's Medical Center, Pauahi 1. Register at 547- 4243.

Also 9:30-11:30 a.m., first Saturday of every month, American Cancer Society, Honolulu Unit, 2370B Nuuanu Ave. Information at 595-7544.

Diabetes support group: 7 p.m. last Wednesday of the month, Castle Medical Center. Call 235-8737.

Endometriosis support group: For women with endometriosis, 6-8 p.m. third Thursday of each month, at Queen's Medical Center. Call 951-6710.

Epilepsy support group: 7 p.m. third Wednesday of each month, Castle Medical Center. Call 235-8737.

Families Anonymous: Family and friends concerned about the abuse of drugs and alcohol and related behavioral problems meet 8 p.m. Fridays at Castle Medical Center. Call 263-3525.

Gamblers Anonymous: 7:30 p.m. Tuesdays, Harris Memorial Church. Call 595-8838.

Health support groups: Child and Family Service offers exercise, education and peer support for depressed, chronically ill or disabled adults older than 60. Call 538-3400. Volunteers needed two mornings a week.

HEARTS: Hope, Encouragement, Assistance and Resolve Through Sharing, a support group for parents who have suffered the death of an infant, meets 2:30 p.m. on the first and third Wednesdays of the month, and 6 p.m. on the third Monday. Call 973-3042.

HIV/AIDS: Eight-week support group for children ages 7-12, 3:30-5 p.m. Thursdays, Life Foundation, 233 Keawe St., Suite 226. Call 521-2437.

Leukemia Society of America: Meeting for patients and families dealing with leukemia, Hodgkin's disease, lymphoma and multiple myeloma, 6:30-8 p.m. third Tuesday of the month, American Cancer Society Offices, 2370 Nuuanu Ave. Social to follow. Register by calling Frank Gormley at 537-7248 or Beth Freitas at 537-7578.

Nar-Anon: 12-step support group for families and friends of drug addicts. Meetings are 8-9:30 p.m. Sundays at Castle Hospital, Olomana Room, Third Floor; and 8-9:30 p.m. Wednesdays, First Methodist Church, Meeting Room 6, Second Floor. Call 262-5298.

Ovarian cancer support group: For women with ovarian cancer, 6:30-8 p.m. third Tuesday of each month, Queen's Medical Center. Call 547-4243.

Pediatric support group: For parents experiencing the loss of a child from infant to 18 years-old, 5:30-7:30 p.m., Shriners Hospital, second and fourth Wednesdays of every month. Information at 973-8284.

Perinatal support group: For families experiencing the loss of a baby through miscarriage, therapeutic abortion, stillbirth and neonatal death, 7-8:30 p.m. fourth Monday of every month, Shriners Hospital, first floor board room. Information at 973-3042.

Stroke club: Survivors and their families get up-to-date information and caring support, 10-11:30 a.m. third Wednesday of each month, Castle Medical Center. Free. Information at 235-8737.

Survivors of Suicide: Confidential support group meets Tuesdays. Call 521-4555. Sponsored by Helping Hands Hawaii.

Tourettes Syndrome Parent support group: 6:30-8 p.m. fourth Monday of each month, City Hall Annex, Civil Service Conference Room. Martha Wacker facilitates. Various speakers. Call 396-0519.

Turner's syndrome support group: Women with Turner's syndrome may experience ovarian failure, infertility and incomplete sexual development. Early treatment may prevent medical problems resulting from the absence of one of two X chromosomes normally found in females. Write to: Sylvia Lee, 3038 A Harding Ave., Honolulu 96816. Or call 734-8947.

VOLUNTEER FOR RESEARCH

AIDS research: HIV patients interested in new treatments for HIV and opportunistic infections can participate in a study sponsored by the National Institutes of Health. Another NIH-sponsored study examines the impact of HIV on women. Research is being conducted by the Hawaii AIDS Clinical Trials Unit and the Hawaii Aids Research Consortium. Call 737-2751 (Oahu) or (800) 806-8208 (neighbor islands).

The University of Hawaii-Manoa, School of Nursing, is also looking for Hawaiian/Part-Hawaiian, Asian and Caucasian people who are HIV positive or who have AIDS. The study gives volunteers an opportunity to learn and use relaxation, biofeedback, imagery and other techniques to improve their quality of life and physical well-being.

Benefits for both control and experimental groups include two free CD4 lab work, education and nutrition sessions and compensation. Research ends Aug. 14. Call Nani at 956-3733 or Jillian Inouye at 956-5326.

Free diabetes screening: People under 45 who have a relative with Type 1 diabetes are eligible for a free screening, part of a six-year study sponsored by the National Institutes of Health. Your blood will be tested for antibodies linked with an elevated risk for developing diabetes. People found to be at risk may participate in the Diabetes Prevention Trial, which explores whether diabetes can be delayed or prevented. Call 531-6886.

Research on women's health: Women ages 50-79 needed for the Women's Health Initiative, a long-term study sponsored by the National Institute of Health. WHI looks into the prevention of heart disease, cancer and bone fracture, and the value of hormone treatment and calcium and vitamin D supplements. Women must be in good health, past menopause, and expect to live on Oahu for the next three years. Call Women's Health Hawaii at 547-9814.

Patient care research project: National Cancer Institute and Pacific Health Research Institute are studying whether screening people for cancer of the prostate, lung, colon or ovaries will reduce the number of deaths from these cancers each year. Volunteers ages 55-74 can call PLCO (Prostate Lung Colorectal and Ovarian Cancer Screening Trial) at 545-3660 or (800) 834-7500.

Yoga for diabetics: Bikram's Yoga College offers a month of free lessons for diabetics who participate in a study of the effects of yoga. Participants must commit to four or five days a week. Call 737-5519.

HOTLINES

Suicide/crisis: 521-4555

For help with other health, social or personal concerns, call ASK-2000 at 275-2000. Hours are 8 a.m. to 6 p.m. Monday through Friday. A counselor will refer you to the appropriate agency.