Some 5.5 million Canadians have high blood pressure, but only about 58 percent of them know it. This is unfortunate, because this virtually symptomless — but potentially dangerous — condition is easy to treat with the right lifestyle choices. As a general rule, many experts say if your blood pressure is in the range of 140 to 159 mm Hg systolic or 90 to 99 mm Hg diastolic and it hasn't responded to changes in your lifestyle after six months to a year, you'll need to start taking medication. If you're able to control your blood pressure very well for a few years, weaving lifestyle changes into your daily routine, you might get the green light from your doctor to lower your drug dose or even stop taking the drugs completely. Here are some lifestyle changes you can make that may help your chances of lowering your blood pressure.