THE ARLINGTON COMMUNITY TEMPORARY SHELTER, for victims of domestic violence, 24 hours a day, seven days a week. Safe house domestic violence hotline, 703-237-0881. Community support groups, 703-237-0881. For information on the shelter, visit www.tacts.org.
Y-ME NATIONAL BREAST CANCER HOTLINES, for those with new diagnoses or who have been under treatment for breast cancer. 800-221-2141 or www.y-me.org.
BREAST CANCER BENEFIT, wine and cheese, silent auction to benefit Alexandria Walk to Fight Breast Cancer, 5:30-7:30 p.m., Alexandria Office on Women, 228 S. Washington St., Alexandria. $25. 703-549-5160.
LEE WALKERS, seniors walk on Roosevelt Island in Arlington, 10 a.m.; meet at Lee Senior Center, 5722 Lee Hwy., Arlington. $2.50; registration required. 703-228-0555.
ARLINGTON MEDICARE PROGRAM, for Medicare beneficiaries, learn about Medicare Part D and prescription drug benefits, question-and-answer session, sponsored by Arlington Agency on Aging, 1-3 p.m. today, Arlington Department of Human Services, 3033 Wilson Blvd., seventh floor; and 10 a.m.-noon Monday, Gunston Middle School, 2700 S. Lang St. Free; registration required. 703-228-1700.
TAI CHI PRACTICES, for seniors, all levels, 9 a.m. Saturdays; noon Mondays and Wednesdays, Culpepper Garden Senior Center, 4435 N. Pershing Dr., Arlington. Free. 703-228-4403.
TENNIS FOR SENIORS, mornings Mondays-Fridays, various Arlington County tennis courts. Free. 703-228-4745.
SEATED STRENGTH TRAINING, seniors, drop-in, 9 a.m. Mondays, Wednesdays and Fridays, Madison Senior Center, 3829 N. Stafford St., Arlington. $3. 703-228-5285.
ALEXANDRIA HIV TESTING, sponsored by Alexandria Health Department and Alexandria Gay and Lesbian Community Association, 9 a.m.-4:30 p.m., at the Health Department, 4480 King St.; 6-8 p.m., William Ramsay Recreation Center, 5650 Sanger Ave.; 6-8 p.m., Mount Vernon Recreation Center, 2701 Commonwealth Ave.; 6-8 p.m., Cora Kelly Recreation Center, 25 W. Reed Ave.; and 6-8 p.m., Charles Houston Recreation Center, 905 Wythe St. Free. 703-838-4400, Ext. 305, or www.aglca.org.
WALTER REED WALKERS, seniors walk along the trails in Cameron Run Park in Alexandria, 9:30 a.m.; meet at the center, 2909 S. 16th St., Arlington. $2.50; registration required. 703-228-5703.
TAI CHI PRACTICES, for seniors, all levels, 2 p.m. Mondays, Aurora Hills Senior Center, 735 S. 18th St., Arlington. Free. 703-228-5722.
OBSESSIVE AND COMPULSIVE DISORDERS, free support group, 7:30-9:30 p.m. Mondays, 703-535-6575; and support group for family members, 7:30-9:30 p.m. first Monday of each month, 703-978-6425. St. Andrew's Episcopal Church, 4000 Lorcom Lane, Arlington.
TAI CHI PRACTICES, for seniors, all levels, 10 a.m. Tuesdays and Thursdays, Madison Senior Center, 3829 N. Stafford St., Arlington. Free. 703-228-5285.
ALEXANDRIA BLOOD DRIVE, sponsored by Inova Blood Donor Services. Noon-8 p.m. Wednesdays, 8 a.m.-4 p.m. Tuesdays, Thursdays and Fridays, Inova Alexandria Hospital, 4320 Seminary Rd., 703-504-3500; 9 a.m.-7 p.m. Tuesdays-Thursdays, Inova Mount Vernon Hospital, 2501 Parker's Lane. 703-664-7229. Registration required.
PROSTATE CANCER SUPPORT, people undergoing treatment or those with new diagnoses discuss problems and options, facilitated by a prostate cancer survivor and an oncology social worker, sponsored by the American Cancer Society. 7-8:30 p.m., Virginia Hospital Center, Cancer Resource Center, 1701 N. George Mason Dr., Arlington. Free. 703-558-5555.
MENTAL HEALTH, for parents, friends and significant others of people with depression, schizophrenia and bipolar disorder, sponsored by National Alliance for the Mentally Ill, 7:30 p.m., Mount Olivet United Methodist Church, 1500 N. Glebe Rd., Arlington. Free. 703-760-8988.
WALKING CLUB OF ARLINGTON, seniors walk from East Falls Church to Jefferson Park in Falls Church, 9:30 a.m.; meet at Culpepper Garden Senior Center, 4435 N. Pershing Dr., Arlington. $3; registration required. 703-228-4403.
LANGSTON-BROWN WALKERS, walk around the neighborhood, 9:30 a.m., Langston-Brown Senior Center, 2121 N. Culpeper St., Arlington. Free. 703-228-6300.
-- Compiled by RIA MANGLAPUS