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可可电台，每期节目一话题，让英语磨练耳朵的同时学到更多有益的小知识，丰富知识的同时受益于生活。
Can achy joints really forecast the weather?
关节疼痛真的可以预测天气吗？
Maybe. A change in barometric readings may be part of the reason: Atmospheric pressure often drops right before bad weather sets in; this shift could cause body tissue to expand, which can lead to swelling and pain.
也许吧，气压变化有可能是一部分原因：坏天气来临时，气压往往会降低，这会导致机体组织扩张，会让人感觉疼痛。
The effect is slight, but people who have arthritic or inflamed joints may detect the difference.
这种影响是十分轻微的，但如果有人患了关节炎又或关节受伤，影响或许会增大。
Temperature may have an impact too: In 2007, researchers found that every ten-degree drop in temperature corresponded with a small increase in osteoarthritic knee pain.
温度也是一方面原因：2007年，研究者发现气温每降低10度会增加膝骨关节炎的疼痛程度。
【知识点】
achy 疼痛
barometeric 大气压的
atmospheric 大气的
tissue 组织
swell膨胀
arthritic 关节炎的
inflame 使发炎的
osteoarthritic骨关节炎的
