What effect does hot and sultry weather have on hypertensive patients?

From the perspective of health care, summer should be nourishing the heart.

Summer is especially bad for patients with hypertension, but there is nothing to be afraid of. As long as you pay more attention, patients with hypertension are normal!

For the analysis of impact, please refer to the following six points:

1. With the temperature rising, the subcutaneous blood vessels of human body dilate, the blood flow of skin increases 3-5 times than usual, and the blood flow back to the heart also increases obviously, which will inevitably increase the burden on the heart.

2. When people are at high temperature, the excitability of sympathetic nerve increases, the heart rate accelerates and the coronary artery contracts, thus increasing the workload of the heart.

3. Sweating a lot in summer, a lot of water in the human body evaporates through sweat, and blood viscosity increases. When it reaches a certain level, there may be a tendency of blood coagulation, leading to ischemia or cardiovascular and cerebrovascular blockage, and in severe cases, it may cause myocardial infarction or stroke.

4. The weather is sultry, people's emotions are easily excited, and their autonomic nerves are disordered. Medical research shows that people who are exposed to high temperature for a long time are prone to nervousness and depression. With the aggravation of symptoms, the probability of cardiovascular events such as sudden death and myocardial infarction will gradually increase.

In summer, the weather is hot and dry, and the days are long and the nights are short, so people often can't get a good sleep. Poor rest is one of the important causes of cardiovascular and cerebrovascular diseases.

6. The humidity in the air increases and the oxygen content decreases, which easily leads to hypoxia. People with hypertension, coronary heart disease or cerebral arteriosclerosis all have different degrees of cardiovascular and cerebrovascular stenosis. When the oxygen content in the air is sufficient, the activity is moderate, and effective vasodilators are taken, patients may not feel any discomfort.

But it's different when the weather is humid and muggy. In humid and sultry air, the water content increases obviously, while the oxygen content decreases obviously. Therefore, even if the variety and dosage of drugs taken have not changed, and even the activity is the same as usual, you will often feel chest tightness, shortness of breath and dizziness, and in severe cases, acute myocardial infarction and cerebral thrombosis will occur.

You can't take water lightly when you play in summer. After all, humans are still land animals. Generally speaking, people with heart disease, tuberculosis, otitis media, hypertension and other diseases are not suitable for going into the water. In addition, for the health of others, people with infectious diseases are not suitable for playing in public places.

Don't be too full and greasy before swimming. It's better to go into the water one hour after dinner. You can't swim on an empty stomach, especially in the morning, otherwise it will easily cause dizziness, fatigue, limb weakness and even cramps. When you are tired, you should have a rest before entering the water. If you have cramps, you should go ashore at once. It is not advisable to play in the water after drinking. Do some warm-up exercises properly before swimming. For example, press your feet, stretch your waist and move your ankles.

I think the guidelines for patients with hypertension in summer are: taking antihypertensive drugs on time; Diet conditioning; Moderate exercise; Psychological balance.