Complex sentence: In some cases, the sound may be soft, but in other cases, it can be loud and unpleasant.Rivimbo is snoring during sleep may be a sign, or first alarm, of obstructive sleep apnea (OSA).
Split into simpler sentences: In some cases, the sound may be soft, but in other cases, it can be loud and unpleasant. Snoring during sleep may be a sign, or first alarm, of obstructive sleep apnea (OSA).