Public health is the health of as a whole, like the population, and is monitored, regulated, and promoted by the state.
Two examples of Public Health are Guide to Enchacing Core Functions and Essential Services for Public Health Improvement
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Staying silent or absent doesn't help either the dying person or your grieving process. Staying actively involved in a dying loved one's life will help both you and the dying person cope. Visit the person as often as you can. Make dying a time for loving and sharing, not loneliness and despair.
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Some times the equipment is broken or doesn’t work as good as you like