After three months of running 3 times per week, how does one's cardiovascular system and fitness levels change?

In strenuous physical activities it is recommended to warm up and cool down ? true or false ?

Anutritional study should take all of the following into account except taste in music. family medical history. work and home responsibilities. lifestyle factors, such as smoking or alcohol consumption.

The 1.5 mile run test and the 12 minute swim test are considered as what kind of test ?