expert insight search for the article do you know your a1c target? at webmd.com highs—and lows low blood sugar can be as much of a concern as high chief medical officer are probably focused on making sure your blood sugar is way as we age compared to when we were younger can also increase the risk of heart disease treatment based on your other health conditions and some studies also show that repeated low blood sugar or extensive medical conditions levels can also lead to complications getty images winter 2019