仅需几周时间，这些药物就可将被感染者每毫升血液的艾滋病毒数量由数百万个减少到50个以内。
In a matter of weeks, these drugs reduce the number of viruses per millilitre of infected blood from millions to less than 50.
在这种情况下，只有在几次呼吸不足出现，导致血液中二氧化碳大量增加和氧气减少后，呼吸的力度才得到调整。
Only after several inadequate breaths under such conditions, resulting in the considerable elevation of carbon dioxide and reduction of oxygen in the blood, is breathing effort adjusted.
第二，一旦完全进入睡眠状态，非快速眼动期间血液中的二氧化碳增加，氧气减少。
Second, once sleep is fully obtained, there is an increase of carbon dioxide and a decrease of oxygen in the blood that persists during NREM.
大多数人可以轻易忍受这些压力，但是患有心脏病的乘客可能会因血液中氧气的减少而感到胸痛。
Most people can tolerate these pressures pretty easily, but passengers with heart disease may experience chest pains as a result of the reduced amount of oxygen flowing through their blood.
对于打哈欠是由血液中的氧气减少或血液中的二氧化碳增加引起的这种观点，一些实验也同样提出了严重的质疑。
Experiments have also cast serious doubt on the belief that yawning is triggered by a drop in blood oxygen or a rise in blood carbon dioxide.
红酒能帮助避免血液凝块和减少因脂肪沉积而造成的血管破坏。
Red wine may help prevent blood clots and reduce the blood vessel damage caused by fat deposits.
日产汽车还将配备加热座椅，这是与美国航天局共同研制的，可以改善血液循环，减少因长途驾驶而产生的腰背疼痛。
Nissan cars will also come with heated seats that incorporate NASA research to enable better blood circulation and reduce the chances of back pain during long drives.
减少饱和脂肪酸的总摄取量可以降低血液内胆固醇水平。
Reducing the total amount of saturated fat we eat can help to reduce our blood cholesterol levels.
手指和脚趾更容易得冻疮，因为在寒冷的气温中，身体要尽力保持核心温暖，因而要减少那些部位的血液流量。
Your fingers and toes are more prone to frostbite, because those areas will have reduced blood flow in cold temperatures, as your body tries to keep its core warm.
研究显示，快速走路可增加血液中“好”胆固醇含量，从而减少心脏疾病引发的风险。
Walking quickly has been shown to increase levels of "good" cholesterol in the blood, which can reduce the chances of suffering from heart disease.
但这就意味着流入肌肉的血液会减少。
短时间里吸收二手烟会刺激你的肺部，并减少血液中的氧气量。
Breathing secondhand smoke for a short time can irritate your lungs and reduce the amount of oxygen in your blood.
研究人员艾玛·怀特曼说：这样的改善在老年人中的表现更为明显，因为大脑血液的流量会随着年纪的增长而减少。
Greater improvements may be seen in the elderly, said researcher Emma Wightman, because blood flow to the brain naturally decreases with age.
这一技术在保存移植器官和减少病人在心脏手术期间对含氧血液的需求方面用得很普及，不过，这一技术还没有在创伤病人的治疗上进行大范围的试验。
The technique is popular for preserving transplant organs and reducing the need for oxygenated blood during heart surgery, but it has not been widely tested in trauma patients.
“酒精稀释血液，并减少发生血栓的可能性，”White说。
"Alcohol thins the blood and reduces the likelihood of clotting," White says.
耸肩会减少流向大脑的血液，使你的呼吸受到更大的压力和阻碍。
Hunched shoulders reduce the flow of blood to your brain, holds in stress and restricts your breathing.
胎儿转移他四肢的血液流向大脑和心脏，以应对血液供应减少。
The fetus diverts the reduced blood supply to its brain and heart and away from its limbs.
以这种方式运动脚部促进小腿肌肉静脉的血液流动，从而减少血液停滞。
Moving feet in this manner encourages blood flow in the calf muscle veins, thus reducing blood stagnation.
论文作者认为，产生效果的机理是通过减少脑部炎症和增加血液流动。
The authors think that it works by reducing brain inflammation and boosting blood flow.
脂肪减少血液中葡萄糖的吸收，这意味着含碳水化合物的食物和脂肪胰岛素指数也可能不高。
Fats help decrease the absorption of sugar in the blood, which means that carbohydrate-containing foods and fat can have a low GI.
这是因为它能使血液粘性降低，并减少身体其它部分(不仅仅是腿部)的动脉发生问题的机率。
This is because it makes the blood less sticky and reduces the chances of having further problems in any artery in the body, not only the legs.
然而，这种情况发生的机会可以通过对血液进行病毒检控，以及在有需要的情况下对血液制品进行热处理而大大减少。
However, the chances of this happening can be greatly reduced by screening all blood supplies for the virus, and by heat-treating blood products where possible.
在炎热的天气下，皮肤需要更多的血液来降温，因此供给肌肉的血液就减少了。
In hot weather, more blood is sent to the skin for cooling so less blood flows to your muscles.
研究人员还发现，每天喝两次酒可以使缺血性中风减少一半的发病风险，缺血性中风是最常见一种中风病，当供给大脑血液的动脉发生阻塞时发病。
Researchers have also found that up to two drinks per day may slash in half the risk for ischemic strokes, the most common type, which occur when arteries that feed blood to the brain become blocked.
它会改善心脏自身的血液供应，并减少室速的发生次数。
This may improve the blood supply to your heart and reduce the frequency of your ventricular tachycardia.
动脉中的堵塞意味着血液流动被减少了。
The blockage in the arteries means that the blood flow is reduced.
不到一半的国家使用所推荐的每分升0.05克血液酒精浓度限制措施，以减少酒后驾车。
Less than half of countries use the recommended blood alcohol concentration limit of 0.05 grams per decilitre as a measure to reduce drink-driving.
对心脏的血液供应就会减少，导致绞痛。
The blood supply to the heart is then reduced, resulting in painful angina.
对心脏的血液供应就会减少，导致绞痛。
The blood supply to the heart is then reduced, resulting in painful angina.
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