Does blood pressure vary between hot and cold seasons across different measurement methods?
Daytime blood pressure significantly declines during the hot season by an average of 5/3 mmHg, particularly in older and treated hypertensive patients, suggesting a potential need for seasonal medication adjustments.
Seasonal BP changes are evident using all daytime BP measurement methods, but not with night-time ambulatory BP. The average BP decline in hot season is at about 5/3 (SBP/DBP) mmHg and appears to be larger in treated hypertensive patients and in older individuals.
Κόλλιας et al. (Wed,) studied this question.