Answer:
if you dont solve this yourself
The most important types of exercises that build cardiorespiratory endurance are aerobic exercises, because those get the blood flowing and and the heart pump better.
Try and meditate more and try nit to be stressed all the time about grades. What i do is i wait until the end of the week and try and finish it on that day
The current recommendation for fat in the american diet is 20 to 35%.