My brother in-law did not listen to me for three years until he had a mini stroke. He tested his homocysteine and it was 31.5. He took four H factors a day for four months, re-tested and was down to 4.7. He has no more headaches and no more worries! I know it would cost a lot of money to have everyone over 50 tested but it could save the NHS a lot more money by cutting out strokes and heart attacks. I am completely converted to the importance of homocysteine and shall keep spreading the message. Keep up the good work, the more articles we can have will save more lives.