How can you increase your cardio-respiratory endurance?
O
A. Increase the frequency of your cardio workouts.
O
B. Increase the intensity of your cardio workouts.
O
C. Increase how long you do your cardio workouts.
O
D. All of the above.

D, all of the above.

Explanation:

When you, every day, increase ever so slightly the difficulty of your work, then you can be able to sustain longer and heavier workout sessions and more.

Don't suddenly make it really hard, or extra hard, take your time to level up SLOWLY how much the workload/work is.

try going vegan or the palyo diet!

one time i was looking at my neighbors screen door to see if the door was open i was squinting like a fool for 10 minutes before realizing he was starring back i then died from embarrassment and am now typing this from the ghost world