Is your blood pressure too high or too low? It can be affected by a number of factors throughout your life. Hypotension and hypertension have an impact on your overall health.
Hypertension can be treated with a combination of blood pressure medications, which are very effective at preventing complications. One in six Canadians don’t even know they suffer from hypertension.
The best thing you can do is adopt healthy lifestyle habits and check your blood pressure regularly.
Here’s what you need to know about hypertension and hypotension.
What is blood pressure?
Blood pressure is the pressure of blood pushing against the walls of your arteries. It fluctuates throughout the day based on emotions, digestion, physical activity or stress. It drops at night and goes up again early in the morning.
Is your blood pressure in the optimal range?
Blood pressure is measured in millimetres of mercury (mmHg) using a blood pressure monitor. It’s expressed using two numbers (an upper number over a lower number). The systolic pressure (the higher number in mmHg) is the pressure in the artery when the heart contracts. The lower number (in mmHg) indicates the diastolic pressure, which is the pressure in the artery when the heart relaxes between beats. The average of your home blood pressure readings should be less than 135/85 mmHg. If you have diabetes, it should be 130/80 mmHg.
High blood pressure
Many people with high blood pressure don’t experience any symptoms. Hypertension is an insidious, terrible disease that’s often called the silent killer. For most people, the cause is unknown. For others, the cause is renal or vascular impairment. Some people may experience:
- headaches
- nosebleeds
- buzzing in the ears
- dizziness
- visual problems
What are the dangers of high blood pressure?
Hypertension that’s not controlled through blood pressure medication can lead to a number of complications linked to the development of heart disease. These complications can affect the kidneys, arteries or eyes, and include:
- stroke
- cerebral hemorrhage
- myocardial infarction or angina
- heart failure
- atrial fibrillation
- left ventricular hypertrophy
- leg pain or pain when walking (claudication)
- end-stage renal disease
- certain dementias
- diabetic nephropathy (kidney disease)
- erectile dysfunction
- retinal bleeding
- premature death
What factors contribute to high blood pressure?
In the long term, a number of unhealthy lifestyle habits can contribute to high blood pressure. Tobacco, alcohol, ultra-processed foods such as fried food, food that’s very high in sugar, junk food, a sedentary lifestyle, stress, and forgetting to take your blood pressure medication all increase the risk factors, allowing blood pressure to rise abnormally for a long period of time.
How can you reduce the risk of hypertension and its complications?
By adopting a healthier lifestyle, you can further reduce your risk of developing this disease. Here are a few changes you could make:
- Quit smoking
- Reduce your salt intake to less than 2,000 mg/day
- Do at least 30 minutes of physical activity a day or exercise regularly
- Limit your alcohol consumption
- Maintain a healthy weight
- Learn to better manage your stress
Low blood pressure
What are the dangers of low blood pressure (hypotension)?
Blood pressure lower than 90/60 mmHg is considered more of a symptom than a health problem in itself. Many high-level athletes have low blood pressure. Blood pressure that’s too low to send enough oxygen to the brain may cause dizziness or fainting, and can be brought on by a number of things:
- changing positions too quickly after eating a large meal
- a heart problem
- a neurological problem
- certain arrhythmias
- dehydration
- taking medication
- excessive heat from a sauna
- hormonal changes
The important thing is to find the cause of your low blood pressure so it can be better treated.
How can you reduce the symptoms of hypotension?
A few preventive measures can help you avoid certain symptoms:
- Don’t stand up too quickly.
- Stay well hydrated by drinking enough water (8 glasses a day, and even more in hot weather).
- Limit alcohol or cannabis.
- Don’t cross your legs.
-Compiled from various sources
