Maintain your brain -- The Baltimore County Department of Aging, in partnership with the Alzheimer's Association, will sponsor free sessions at local senior centers this month. For a list of times and locations, call 410-887-2594.
Back pain seminar -- Harbor Hospital's Baum Auditorium, 3001 S. Hanover St. / Benjamin Carr, Harbor Hospital orthopedic surgeon, will speak at 5:30 p.m. Wednesday. Dinner is included. Free. Registration: 410-350-2563.
Type 2 diabetes -- Greater Baltimore Medical Center's Geckle Diabetes & Nutrition Center, 6569 N. Charles St., Physicians' Pavilion East, Suite 507, Towson / Days and times vary. Registration: 443-849-2036.
Prepared childbirth comprehensive course -- Franklin Square Hospital Center, 9000 Franklin Square Drive / Parents can prepare for the emotional and physical changes of pregnancy. A six-week class starts at 6 p.m. June 3. Registration: 443-777-7000.
Walking program -- Honeygo Run Regional Park, off Honeygo Boulevard / 9:30 a.m.-10:30 a.m. Mondays-Fridays. Free. Information: 888-74-OBTLC.
Walking program -- Harbor Hospital, held at the Centre at Glen Burnie, 6711 Ritchie Highway / 8 a.m.-10 a.m. daily. Free. Registration required. 410-350-8255.
Indoor walking program -- Wheels Skating Center, 1200 Odenton Road, Odenton / Co-sponsored by Baltimore Washington Medical Center and O'Malley Senior Center. 9 a.m.-10 a.m. Mondays, Wednesdays and Fridays. Free. Registration required. 410-222-6227.
Lung cancer -- Harbor Hospital, 3001 S. Hanover St. / Computerized tomography (CT) scans for those older than 50 with a history of smoking, exposure to asbestos or secondhand smoke. $50. 410-350-2563.
Breast and cervical screenings -- Franklin Square Hospital Center, 9000 Franklin Square Drive / Screenings for women ages 40 to 65 who meet income requirements. Free. 443-777-8138.
Stroke prevention and osteoporosis screenings -- Life Line Screening offers ultrasound and bone-density screenings to gauge your risk of a stroke or osteoporosis, at various locations. A stroke prevention screening is $109, and a stroke and osteoporosis screening is $129. For locations and to register, call 800-697-9721.
Straight spouse support -- When a spouse comes out as being gay, lesbian or transgender, the Straight Spouse Network can provide support and information. 7:30 p.m.-10 p.m. tomorrow in Columbia. 301-645-1898.
New mothers -- St. Joseph Medical Center, 7601 Osler Drive, Towson / 10:30 a.m.-noon Thursdays. For mothers of infants up to 5 months of age. 410-337-1880.
Parkinson's disease -- Laurel Regional Hospital, 7300 Van Dusen Road / 10:30 a.m. Tuesdays. 301-776-3426.
Bipolar disorder -- Laurel Regional Hospital, 7300 Van Dusen Road, Laurel / 6:30 p.m. Thursdays. 301-497-7914 or 410-792-7636.
Clutterers Anonymous -- St. John's of Hamilton Church, Harford Road and Gibbons Avenue / 7 p.m.-8 p.m. Wednesdays. 410-254-3245.
For calendar listings, e-mail releases four weeks in advance to firstname.lastname@example.org or mail typed news releases to Health Calendar, Features, The Sun, 501 N. Calvert St., Baltimore 21278.