Cardiovascular so you can pump oxygenated blood through the heart
Answer:
ask more questions to open up and definitely confront the problem to her so you guys can work it out because if you don't and you both keep holding back it's not finna help nun so just go to her talk to her get out of you comfort zone. make the first moves yk don't hold back communication is key.
C heritability
herdity means family or ancestors
To prevent injuries, because if you are running around and exercising, if you haven't warmed up, you could pull a muscle or injure yourself. Cool downs help calm your body down and lower your heart rate.