This checkoff list could be used by a scribe to keep track of which Scouts have earned which merit badges or could be used by an individual Scout.
Public Health Merit Badge
The field of public health deals with maintaining and monitoring the health of communities, and with the detection, cure, and prevention of health risks and diseases. Although public health is generally seen as a community-oriented service, it actually starts with the individual. From a single individual to the family unit to the smallest isolated rural town to the worldwide global community, one person can influence the health of many.
A reader asks about how old a Scout should be to work on a merit badge. The Guide to Advancement provides some answers.
Boy Scouts learn about their personal responsibilities and the community aspects of public health while working on the Public Health merit badge.
The physical fitness troop program feature offers the opportunity to introduce concepts of exercise diet, and healthy habits in a troop setting.
The focus in this program feature is citizenship and service. Younger Boy Scouts can work on flag etiquette, flag ceremonies, and their rights and duties as US Citizens. Older Scouts could work on the Citizenship in the Community, Citizenship in the Nation, and Citizenship in the World merit badges.