The health care field is enormous the world over, which makes this icon one that can be used for a myriad of purposes. Use this icon on articles about healthcare and heart health. Use it on websites dedicated to health and medical care, or even first aid. Use it on documents and brochures about health. When people see it, they will automatically know that the topic is related to health.
There are a variety of icon styles to choose from.
You can use this icon in articles about heart health.
You can use this icon in heath guides.
You can use this icon to signal that medical advice is being given.
Related icons you might find helpful are The World Health Organization, Hospital, Medical Book, and Bandage icons.