Body language: joints that crackle
What it means: Noise without pain―usually caused by air bubbles in the protective fluid cushioning your joints―is harmless, though it may signal that you’re stressed. When stress levels rise, the joints in the neck tighten and tend to crack more.
What to do: Do neck rolls every 45 to 60 minutes. Try regular yoga or massage to ease stress. And for mild joint aches, try an over-the-counter painkiller.