"It can lead to problems with blood flow in the brain, and contribute to clots being formed in the blood vessels - and either of these increase the chance of having a stroke," said Allan Hackshaw, a researcher at University College London.
"It can lead to problems with blood flow in the brain, and contribute to clots being formed in the blood vessels - and either of these increase the chance of having a stroke," said Allan Hackshaw, a researcher at University College London.
"It can lead to problems with...