Question

What is the best way to combine these sentences?

There is a condition that causes a momentary cessation of breathing. It is called apnea. It often occurs during sleep.
A. When there is a momentary cessation of breathing, it is called apnea and often occurs during sleep.
B. Apnea, a momentary cessation of breathing, often occurs during sleep.
C. Momentarily ceasing to breath, apnea often occurs during sleep.

Answer 1

@Hyperbolex

Answer 2

@Hayhayz

Answer 3

B, all the way.