A get fit challenge, for those new to exercise and needing to lose 20 (or more) pounds, will take place Saturdays, starting Jan. 14, and ending March 3, 9-10:15 a.m., at Torigian Family YMCA, 259 Lynnfield St.
An informational session will be held Saturday, Jan. 7, at 9 a.m.
Meet with a personal trainer in four 1/2-hour training sessions every Saturday morning.
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Cost: $240, for YMCA members, only.
Sign up at the front desk in the lobby.