For people with high blood pressure, in instances that you know you Blood pressure is high, how do you cope with it aside from taking medication?

I don't have high blood pressure myself but we have a family history of having it. Alot of my aunts and uncles including my mom has high blood pressure. How do you cope in a situation where your blood pressure is high? I want to learn so I have an idea what to do if it happens. Thank you in advance.