Al-Anon Family Group newcomers meeting, 7:15 p.m.; regular meeting, 8 p.m., Haymarket Baptist Church, parish hall, 14800 Washington St., Haymarket. 703-969-2726.
Red Cross Blood Drive 2-8 p.m., St. Thomas United Methodist Church, 8899 Sudley Rd., Manassas. 800-733-2767, www.redcrossblood.org/make-donation.
Al-Anon Family Group 7 p.m., St. Paul United Methodist Church, 1400 G St., Woodbridge. 703-534-4357.
Coping with grief during the holidays support and strategies for managing the holiday season, sponsored by Capital Caring Hospice. 7 p.m., Potomac Community Library, 2201 Opitz Blvd., Woodbridge. Free. 703-396-6198.
Overeaters Anonymous 7 p.m., Bethel Lutheran Church, 8712 Plantation Lane, Manassas. 703-823-6682, www.oanova.org.
Overeaters Anonymous sunrise meeting 7 a.m., St. Benedict Monastery, 9535 Linton Hall Rd., Bristow. 202-437-5070, www.oanova.org.
Cancer support group a meeting for cancer patients, survivors and their families. 7 p.m. Tuesdays, Prince William Hospital, Medical Building 1, fourth floor, Conference Room C, 8700 Sudley Rd., Manassas. 703-895-4857.
Renewed Hope support group a meeting for anyone who has attempted suicide. Call for the location. 7 p.m., ACTS Family Services Center, 3900 ACTS Lane, Dumfries. Free. 703-368-4141.
Weight loss support group 11 a.m., Spirit and Life United Methodist Church, 4223 Dale Blvd., Woodbridge. Free. 703-878-7779, 571-277-7976.
Overeaters Anonymous Meditation and Writing meeting 7 a.m., St. Benedict Monastery, 9535 Linton Hall Rd., Bristow. 703-361-0106, 703-754-9237, www.oanova.org.
Weight loss surgery support group for patients who have had or who are thinking about surgery. 6:30-8 p.m., Sentara Northern Virginia Medical Center, 2300 Opitz Blvd., Woodbridge. Free. 703-670-1236.
Families Anonymous a 12-step program for adults with family members with substance-abuse problems. 8 p.m., Manassas Presbyterian Church, 8201 Ashton Ave., Manassas.703-928-9385, www.familiesanonymousva.com.
Blood pressure screening 9 a.m.- noon, Prince William Health System Wellness Center, 8640 Sudley Rd., Manassas. Free. 703-369-8605.
Caregivers support group 9:30 a.m. first Friday of the month, St. Thomas United Methodist Church, 8899 Sudley Rd., Manassas. 703-361-8841.
Alcoholics Anonymous 8:30 p.m., Concordia Lutheran Church, 3637 Graham Park Rd., Triangle. 703-293-9753.
Fit for Christ boot camp the 75-minute class begins with a prayer and warm-up followed by a quick-paced workout with weights. 8 a.m. Saturdays, First Baptist Church of Woodbridge, 13600 Minnieville Rd, Woodbridge. $10; children 9-15 free with an adult. 571-437-8641, www.fitforchrist.us.
Anxiety support group Recovery Inc., for people who have anxiety, depression, fear or other emotional problems. 10 a.m.-noon, Cokesbury United Methodist Church, 14806 Blackburn Rd., Woodbridge. 703-441-0840.
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Mail: Health Calendar, Prince William Local Living, The Washington Post, 9420 Battle St., Manassas, Va. 20110.