It shows a doctor checking the boys heart and making sure that there is nothing wrong with your heart or anything that is wrong with your body so you can stay healthy.
It is showing how you can become a doctor and what a doctor is and how they can help you.The different types of doctors there are.
Medicine has changed over time and now we have a lot of different medicines for different cures.In the 20th century to curing disease to escape the body they would have to make a hole in your body to cure your disease 2.5 and 5 cm across.
A lot of people don't want to be a doctor because you have to work with the human body but there is a lot more than that.One of the reason is that you get a lot of money but if you want work at a ER you have to be on call 24/7 and not a lot of people want to do that so you should be a doctor if you like to help people.
Not all people like to go to the doctor daily but doctors can help you get better you just have to find the right doctor for you.And you have to have a doctor that knows what they are doing so they don't make everything worse.