Does noise affect high blood pressure?

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Generally speaking of noise, we will think of hearing damage, sleep disorders, anxiety, but they do not know that noise can also cause high blood pressure.

A study in the journal Environmental Health has confirmed that chronic exposure to traffic noise above 60 decibels is associated with high blood pressure and possibly other cardiovascular diseases. Population studies have shown that people under the age of 60 who are regularly exposed to noise above 60 decibels have a three to five times higher risk of developing hypertension, suggesting a clear link between noise and high blood pressure. For people already suffering from high blood pressure and heart disease, noise stimulation can cause changes in pulse and heart rate, increase in blood pressure, arrhythmia, heart block, and even lead to hypertension emergencies and heart attacks.

Acute noise exposure often causes high blood pressure. Under the influence of 100 dB noise for 10 minutes, the human adrenal hormone secretion increases and the sympathetic nerve is excited. This conclusion has been confirmed in animal and human experiments. Several large studies have also shown a positive association between chronic noise exposure and hypertension. Exposure to 70 decibels to 90 decibels for five years increased the risk of high blood pressure by 2.47 times.

The main mechanism of elevated blood pressure induced by noise exposure may be vascular endothelial dysfunction and increased epinephrine secretion. In a study of 75 volunteers, Schmidt et al. showed that noise exposure caused mental stress and disrupted sleep, and compared with the normal group, the noise exposure group had decreased endothelial function and increased epinephrine concentration, both of which in the long run can lead to hypertension. Living and working in high noise environment for a long time is very harmful to human health. The World Health Organization has listed noise as one of the risk factors of essential hypertension.

Teach you a few small methods below, can effectively prevent the harm of noise!

1. Soundproof space

Try to soundproof your home by keeping noisy machines out of your bedroom and living room so you have a relatively quiet space.

2. Spend time away from noise

Opt for a quiet place (like a library, a shady alley, etc.) for a few hours of quiet and relaxation.

3. Learn to meditate

Learning how to meditate can help you deal with noise and stress. Meditation is not limited by time conditions and does not require dropping everything, just closing your eyes and focusing on deep breathing.

4. Use earplugs and headphones

There are many noise-resistant earphones and earplugs on the market, so we should choose the one that suits us best. Learning how to use earplugs and headphones properly can help you effectively reduce noise.

Of course, it is more important to avoid making noise, such as not abusing car horns, keeping quiet at night and so on. Keep away from noise and avoid the fluctuation of blood pressure caused by the malignant stimulation of noise.