Science, Maths & Technology
Ice Cold In Alex
...become starved of oxygen, and waste such as lactic acid builds up in the tissues. In the heat our blood also becomes thicker, as moisture is lost through the sweat glands. [Diagram of artery] As the blood gets thicker, the flow through the blood vessels becomes more turbulent, and this may activate the clotting system. Small clots can form, blocking blood vessels and...