The researchers randomly gave some of the women portable CD players and told them to listen to their choice of music while they walked. The other women walked without listening to music.

Women in the music group were also more likely to follow the strict exercise schedule and to complete the study, write researcher Christopher Capuano, PhD, and colleagues.

For instance, some safety experts recommend not wearing headsets when you run or walk outside, since you might not hear traffic or a potential attacker.

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