Edith Hejberg
With temperatures in Scotland set to hit a scorching 30°C this weekend, health experts are sounding the alarm, especially for those with high blood pressure.
With temperatures in Scotland set to hit a scorching 30°C this weekend, health experts are sounding the alarm, especially for those with high blood pressure.
The Silent Risk: How Heat Affects Blood Pressure
Hot weather leads to excess sweating and fluid loss, which can lower your blood volume and cause a drop in blood pressure.
For those with hypertension, this sudden shift can trigger dizziness, fainting, or even cardiac complications. Staying cool and hydrated isn’t just about comfort. it is about safety.
Medication May Make Matters Worse
Many common blood pressure medications—such as ACE inhibitors, beta-blockers, and calcium channel blockers, can impair your body’s ability to regulate temperature or even dull your sense of thirst.
This makes it easier to become dehydrated without realising it.
1. Dress Light, Dress Smart
Wear loose, breathable clothing in light colours to reflect the heat. Natural fabrics like cotton or linen are best.
If you’re heading outdoors, a wide-brimmed hat is your best friend—not just for shade, but to reduce overall body heat.
2. Keep Indoor Spaces Cool
During peak daylight hours, close blinds or curtains, especially in sun-facing rooms. Open windows in the early morning or evening to let cooler air in.
If you can, use a fan or create a DIY air cooler by placing a frozen bottle of water in front of the airflow.
3. Avoid the Midday Heat
Between 11am and 3pm, temperatures are at their most intense.
Stay indoors or find shaded areas if you must go outside. Apply high-factor sunscreen regularly, and don’t forget your hat and sunglasses.
4. Stay Hydrated—Even If You’re Not Thirsty
Dehydration is one of the most common dangers in a heatwave. Keep cool drinks nearby and sip throughout the day.
Water is best, but milk, diluted squash, fruit juice, tea, and even coffee count. Foods with high water content, like melon, yoghurt, or ice lollies.
5. Cool Down Creatively
Cold compresses, cool showers, or even a damp washcloth on your wrists and neck can work wonders.
You can also freeze water bottles to place by fans or tuck under pillows. Keep an ice pack ready in the freezer for instant relief when needed.
6. Check on Others—Especially the Vulnerable
If someone you know is elderly, has dementia, or takes blood pressure medication, check in regularly. A friendly visit can make a world of difference.
Leaving reminders to drink water or making a few adjustments to their environment can also help prevent heat-related illness.
Know the Warning Signs of Heat Stress
Be alert for symptoms like dizziness, fatigue, confusion, rapid heartbeat, or cold and clammy skin.
These may signal that your body is struggling with the heat, particularly concerning for people with existing heart or circulation issues.
Who’s Most at Risk?
According to the Mayo Clinic, people over 50, those living with heart, lung or kidney disease, and individuals with obesity are particularly vulnerable in extreme heat.
Extra caution is advised for anyone in these groups, especially when medications are involved.
