Why is cardiovascular fitness important?

it muscles become stronger.

it flexibility.

it one to lift heavier weights.

it the heart, lungs, and circulatory systems to work well.

It helps the heart, lungs, and circulatory systems to work well

Explanation:  As a result of constant exercise of an individual it helps the heart (Cardiovascular)pump blood as well as help lower blood pressure, and keep your arteries clear by raising “good” high-density lipoprotein (HDL) cholesterol and lowering “bad” low-density lipoprotein (LDL) cholesterol levels in the blood.

i would suggest to drink some water, my eyes get dry early in the morning and is that dose not much you can try some eye drops, flushing it with eye solution, and if its red i would think it could be pink eye, allergies also effects the eyes, nose, ears and others so it could be that, the best solution i can think is try to flush it and if it dose not then see a doctor.