Yes, of course we all know we should exercise every day during the holiday season to help counter the onslaught of excess calories that started on Thanksgiving and will mercifully end with a New Year’s toast. We may even tire of hearing about exercise and weight from family, friends and the media. But an equally important reason to exercise every day is related to blood pressure, not waistline. As a physiologist who has studied exercise and health for over 20 years, I can tell you that exercise lowers blood pressure – and does so right away. Whether you go for a daily run or brisk walk, every time you finish exercising your blood pressure goes down, and stays down for many hours, which is good for your overall health. Here’s why.