SBS NEWS

News > Society

Sudden Drop in Temperature Shocks Blood Vessels... Beware of 'Blood Pressure Spikes'

Lee Gang

Published : Oct 22, 2026 9:46 AM

Video

The next informative news is about "blood pressure spikes."

This morning (October 22), temperatures in some regions plummeted to a low of 0 degrees Celsius (32 degrees Fahrenheit).

You must be careful not to let your blood pressure surge abruptly during such suddenly chilly mornings.

Blood pressure naturally rises gradually for an hour or two after waking up from sleep.

At this time, sudden exposure to cold air can cause blood vessels to constrict, driving blood pressure up much higher than usual.

This is also referred to as a morning blood pressure spike.

Caution is necessary as it can increase the risk of myocardial infarction or stroke.

Especially for those with hypertension or cardiovascular disease, exercising or going outside on cold mornings should be avoided.

It is advisable to shift your activities to the relatively warmer late morning or afternoon hours.