如果你超重，最好减肥。 戒烟。 让自己更活跃。 穿压力袜。 多喝不含咖啡因的液体。

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
The risk of DVT is much greater if you are overweight or obese. The additional weight makes it more difficult to circulate blood around the body, particularly back to the heart from the feet and legs. Consequently, the increase in blood pressure tends to damage blood vessels and promote the formation of plaques and clots. Losing weight makes it easier on your heart and blood vessels, thus reducing the risks of DVT and atherosclerosis.  Lose weight by increasing cardiovascular exercise (such as w