Key to blood clotting discovered

Scientists have discovered a molecular mechanism that is key to regulating the way blood clots. The team from Harvard University, writing in the journal Science, said the finding could help treat people who have blood-clotting disorders. If blood clots too much, people can develop a potentially fatal thrombosis; too little and they can bleed to death. UK experts said the research was important and could help develop new treatments for blood disorders - BBC