This also explains why symptoms of carpal tunnel syndrome tend to be worse at night after a day of use.

这也说明了为什么白天使用手工作后，腕管的症状会在夜间加重。

Oh, and then the cellist has carpal tunnel syndrome...

然后大提琴手得了 腕关节症。

Typically in carpal tunnel syndrome, both hands are affected because usually there's a repetitive stress injury like typing, which causes inflammation in both wrists.

典型的腕管，双手会受到影响，因为通常会有重复性的压力损伤，比如打字，这会导致双侧手腕发炎。

A 2014 CDC report found that 34% of workers suffer from carpal tunnel syndrome and 76% of workers had nerve disorders when working at standard speeds.

美国疾病控制中心2014年的一份报告发现，34%的工人在以标准速度工作时患有腕管症，76%的工人患有神经紊乱。

Other risk factors of carpal tunnel syndrome include obesity or pregnancy, as well as having underlying conditions like rheumatoid arthritis where there's joint inflammation from an autoimmune process, that leads to the compression of the median nerve.

腕管的其他危险因素还包括肥胖和怀孕，和一些潜在的症状如类风湿性关节炎（一种由免疫反应导致的关节炎症，也会引起正中神经卡压）。