Nitric oxide dilates blood vessels. In a person with diabetes, low levels of nitric oxide may lead to constriction of blood vessels supplying the nerve, contributing to nerve damage. Another promising area of research centers on the effect of high glucose attaching to proteins, altering the structure and function of the proteins and affecting vascular function. Scientists are studying how these changes occur, how they are connected, how they cause nerve damage, and how to prevent and treat damage. When cooking with herbs, snip them with scissors or chop them by hand.
Most fresh herbs are perishable and careful keeping is crucial.
Store bunches in the refrigerator, their stems in water. Pack loose leaves and flowers, and rhizomes such as ginger, in perforated plastic bags in the refrigerator crisper. If there is excess moisture in the leaves or tubers, before packing, pat them fairly dry, then crush a dry paper towel at the bottom of the bag and place the leaves on top. A little moisture helps keep plant parts fresh, but too much moisture promotes decay. Medicare is usually for people over 65 years old.