Keeping your legs in the same position for an extended length of time reduces circulation in your legs and can cause blood to pool in your veins. Focus on shifting or changing the position of your legs to maintain good circulation. Change your position every 30 minutes or so. Take a walk around the office or, if this is not possible, stand up and stretch your arms and legs every 30 minutes. Elevating your legs while you sit can ease the pressure on your blood vessels. Keeping your legs uncrossed can also reduce pressure on your veins. Place your feet on a stool or another chair, when possible, to improve the circulation in your legs. Try occasionally lifting your legs so that your feet are above the height of your heart. Elevate your legs as you sleep, as well. Keeping your legs elevated as you lie down can be just as important as elevating them when you are sitting down. Wearing high heels and tight clothing can make it more difficult for blood to pass through your veins. Low-heeled shoes or flats cause your calf muscles to work more as you walk, which also helps with circulation of blood flow in your legs. You should especially avoid tight clothes that cut off circulation around your waist, legs, or groin. Go for loose clothing or clothing that does not squeeze or constrict these areas. Including moderate exercise into your daily routine can improve both the circulation and muscle tone in your legs. Exercising on a regular basis will also help you lose weight, if needed. If you are overweight or obese, shedding your extra pounds can ease the pressure on your legs and greatly minimize varicose veins.  A 30-minute walk or jog around your neighborhood a few days a week can greatly improve your overall circulation, especially the circulation in your legs. Focus your efforts on cardiovascular exercises, which help to get the blood pumping throughout your body, and strength training exercises that target the legs in order to build and tone muscle mass there. Restorative yoga is a type of yoga that uses props like...

How would you rephrase that briefly using Vietnamese?
Tránh đứng hoặc ngồi quá lâu. Kê cao và không bắt chéo chân trong khi ngồi. Nằm ngủ trên lưng với chân kê cao. Chọn giày đế thấp và quần áo rộng rãi. Tập thể dục thường xuyên. Tập tư thế yoga hồi phục. Duy trì chế độ ăn cân đối. Cai thuốc lá