Do the season and temperature affect blood pressure??⛄⛄⛄

Blood pressure is affected by many factors, including season and temperature. A study
has found that the average blood pressure in winter is 12/6mmHg (systolic/diastolic  blood pressure) higher than the average blood pressure in summer. For every 1°C decreases in temperature, the systolic blood pressure rises by 1.3mmHg and diastolic blood pressure rises by 0.6mmHg. 

In winter, the decreasing of temperature and the cold weather lead to increase sympathetic nerve excitement. It causes increasing heart rate, the release of catecholamines, increasing cardiac systolic function and myocardial oxygen consumption, peripheral vasoconstriction, increasing peripheral vascular pressure and blood pressure. At the same time, less sweating in winter lead the blood volume higher.  Those are also the causes of blood pressure fluctuations in winter. 

In summer, as the temperature gradually rises, the blood vessels dilate and blood pressure gradually decreases. The amount of sweating is more than in winter. The water in the body is lost more. The blood volume decreases. In some patients, the blood pressure declines or is close to normal.

Therefore, season and temperature changes may cause blood pressure fluctuations. Patients with hypertension should regularly monitor their blood pressure according to changes in temperature. Based on the changes in blood pressure, consult the doctor to adjust the medicine in time. Make sure to feel relax, avoid anxiety and excitement, eat lightly and avoid complications of hypertension.

👀Winter is here, keep yourself warmer~~