Choose foods lower in salt and sodium. If you drink alcoholic beverages, do so in moderation. Do not smoke, while it is not directly related to blood pressure, it can increase the risk of heart attack or stroke. Consider stress management techniques as stress can increase blood pressure. When Reinhold Niebuhr said it, I'm not sure he was applying it to stress management, but it may contain the best general approach to the subject.
Stress is a part of all our lives, be it at home or the workplace.
Stress can be good or bad. No single method of stress reduction works for everyone. Usually combinations of approaches are most effective. And you should always consult a professional if there are any indications of accompanying medical or psychological conditions. Include pleasurable activities to offset the negative ones.