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

Take Off Pounds Sensibly Weight-loss support group with weekly weigh-ins. 703-430-3764. www.tops.org. $28 to join.

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

Thyroid health talk A presentation by nurse Sharon Clark on common and not-so-common symptoms. Thursday, 11 a.m. Prince William Senior Center, 9320 Mosby St., Manassas. 703-792-6405. Free.

Manassas blood drive Thursday, 2-8 p.m. Manassas Volunteer Fire Company, 9322 Centreville Rd., Manassas. 800-733-2767. www.redcrossblood.org.

Diabetes support group A presentation on being ready for diabetes care during natural disasters and other emergencies. Thursday, 6:30 p.m. Prince William Health System Wellness Center Suite 108, 8640 Sudley Rd., Manassas. 703-369-8405, Ext. 4. Free.

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

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

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

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

Overeaters Anonymous sunrise meeting Tuesdays, 7 a.m. St. Benedict Monastery, 9535 Linton Hall Rd., Bristow. 202-437-5070. www.oanova.org. Free.

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

Cardiac disease support group Tuesday, 7-8:30 p.m. Sentara Northern Virginia Medical Center, 2300 Opitz Blvd., Woodbridge. 703-670-1877. www.sentara.com/northern-virginia. Free.

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

Parenting course Six weeks of Systematic Training for Effective Parenting classes for parents of school-age children. Wednesdays, 6:30-8:30 p.m. Yorkshire Elementary School, 7610 Old Centreville Rd., Manassas. 703-792-6288. $40. Registration required.

TDAP vaccine clinic Tetanus-diptheria-pertussis vaccines for seniors. Next Thursday, 9:30-11:30 a.m. Prince William Senior Center, 9320 Mosby St., Manassas. 703-792-6405. Appointments required. $2; senior center members, free.

— Compiled by Sarah Lane

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