143k views
0 votes
The word cardio refers to _________.

User Efx
by
4.9k points

2 Answers

2 votes

Answer: Physical exercise

Explanation: Cardio refers to why physical exercise which improves the rate at which a human heart performs its duties.

User Dwane
by
5.2k points
5 votes

Answer:

Cardio- is a combining form used like a prefix meaning “heart.” It is used in many medical and scientific terms. Cardio- comes from the Greek kardía, meaning “heart.” In fact, the English word heart and the Greek kardía are related. Learn more at our entry for heart.

Step-by-step explanation:

User Jennell
by
4.4k points