Answer
The reason something or someone exists
Ethical standards promote the values that are essential to good communication, such as trust, accountability, mutual respect and fair medical care. Many ethical standards in medical care, including informed consent, protection of privacy and maintenance of confidentiality, provide a grantee for respect for persons.
Smoking causes many adverse health effects, including heart disease. Cardiovascular exercise and smoking are two activities which fall at opposite ends of the health spectrum. Cardiovascular fitness, or cardio, helps to improve heart and lung function, builds athletic endurance, and promotes overall health.