The Winter Lift: Why Your Blood Pressure Rises When the Temperature Falls
When the temperature drops, it’s not just your heating bill that can rise - your blood pressure might, too.
As the days get shorter and the chill sets in, many people find their blood pressure readings creeping up slightly. It’s a natural response to cold weather: when we’re exposed to lower temperatures, our blood vessels narrow to conserve body heat. This makes it harder for blood to flow, and that extra pressure can nudge readings higher than usual.
For most of us, the change is small, perhaps just a few points, but for people with high blood pressure, it can make a real difference. Studies show that average blood pressure can be 5–8 mmHg higher in winter than in summer, especially among older adults or those already taking medication.
The good news? There are simple steps you can take to protect your heart health and keep your numbers steady, whatever the weather brings.
Three easy ways to stay in control this winter
- Keep warm:
Aim to heat your home to at least 18°C (65°F). Layer up, wear warm socks, and keep moving, even light indoor activity helps maintain circulation. - Stay active (indoors counts!):
Short walks, stretching, or household chores all help keep your heart pumping and your pressure down. Try not to let winter hibernation take over completely. - Monitor your blood pressure regularly:
If you have a home monitor, check your readings more often through the colder months. This helps you spot any upward trends early and talk to your GP if adjustments are needed. - Watch the extras:
Comfort foods can sneak in more salt and calories than you realise. Choose soups and stews made from fresh ingredients and keep alcohol to a minimum.
By staying warm, active, and mindful, you can make sure your blood pressure doesn’t get the winter blues and your heart stays healthy all year round.