Al-Anon/Alateen groups For people whose lives have been affected by drinking. 703-534-4357.

Take Off Pounds Sensibly (TOPS) Support group with weekly weigh-ins. 703-430-3764. $28 to join.

Overeaters Anonymous Thursdays at 7 a.m. St. Benedict Monastery, 9535 Linton Hall Rd., Bristow. 703-361-0106. 703-754-9237.

Blood pressure screening Friday, 9 a.m.-noon. Prince William Health System Wellness Center, 8640 Sudley Rd., Manassas. 703-369-8605. Free.

Fit for Christ boot camp A quick-paced workout with weights. Saturdays at 8 a.m. First Baptist Church of Woodbridge, 13600 Minnieville Rd. 571-437-8641. $10; ages 9-15, free with a paying adult.

Manassas blood drive Saturday, 8 a.m.-2 p.m. Knights of Columbus Hall, 9290 Stonewall Rd., Manassas. 800-733-2767. Appointments welcome.

Anxiety support group Saturdays, 10 a.m.-noon. Cokesbury United Methodist Church, 14806 Blackburn Rd., Woodbridge. 703-441-0840. 703-494-5400.

Health-care costs forum Presentations on insurance, the Affordable Health Care Act, Medicaid and Medicare. Sponsored by the League of Women Voters. Saturday, 2-4 p.m. Westminster at Lake Ridge, 12191 Clipper Dr., Lake Ridge. 703-496-3400. Free.

Manassas blood drive Sunday, 10 a.m.-4 p.m. American Red Cross Youth Corps, 9934 Liberia Ave., Manassas. 800-733-2767. Free.

Al-Anon Family Group Sunday at 8 p.m. Haymarket Baptist Church Parish Hall, 14800 Washington St., Haymarket. 703-969-2726.

Manassas blood drive Monday, 2-8 p.m. St. Thomas United Methodist Church, 8899 Sudley Rd., Manassas. 800-733-2767. Free.

Overeaters Anonymous Mondays at 7 p.m. Bethel Lutheran Church, 8712 Plantation Lane, Manassas. 703-823-6682.

Overeaters Anonymous sunrise meeting Tuesdays at 7 a.m. St. Benedict Monastery, 9535 Linton Hall Rd., Bristow. 202-437-5070. Appointments welcome.

Cancer support group Tuesdays at 7 p.m. Prince William Hospital, Medical Building 1 (fourth floor, Conference Room C), 8700 Sudley Rd., Manassas. 703-895-4857.

Weight-loss support group Wednesdays at 11 a.m. Spirit and Life United Methodist Church, 4223 Dale Blvd., Woodbridge. 703-878-7779. 571-277-7976. Free.

Weight-loss surgery support group for patients who have had or who are thinking about bariatric surgery. Next Thursday, 6:30-8 p.m. Sentara Northern Virginia Medical Center, 2300 Opitz Blvd., Woodbridge. 703-670-1236. Free.

Red Cross needs volunteers Help is needed with donor-comfort services at local blood drives. 800-272-0094, Ext. 1.

— Compiled by Sarah Lane

Submit an item E-mail at least 14 days before the publication date.