Bonds are central to the global financial system, and when their yields rise it can have a significant impact on your finances.Bond yields – the amount that bonds pay in interest as a percentage of their price – are reaching all-time highs. In August, yields on 30-year US government bonds (Treasuries) rose to over 5.3% , the highest level since June 2007. The yield on 10-year UK government bonds (gilts) rose above 5.29% on 2 September, the highest level for 19 years.While higher yiel