Malaria is a disease from africa
The answer is underextension
This would be an example of classical conditioning. This is almost exactly what Pavlov did with his dogs.
Walking and even petting dogs appears to be associated with reduced risk of (A)<span> blood pressure and heart rate. Having a walk regularly will help you have a normal blood circulation. It will regulate the pumping of your blood from your heart in a normal way. It will also help you to lose weight and make you healthier.</span>