depends on how high your pressure was, cause if it s too high non pharmacological treatment alone it s not effective.- but in general, you have to exercise, eat low sodium food (with no adding of salt at all) and low in fat, lose weight if you re overweight, stop smoking if you smoke, stop drinking if you drink a lot of alcohol, get a proper control of your diabetes if your diabetic, and those just to name a few.- but there s one thing about your story, you said you had high pressure today, but this was the first time? cause if it was, just one time isn t enough to make the diagnosis of hypertension.- anyway, those measures can t hurt you, only help you, so good luck.- and go to a doctor.-