Have you ever experienced that you have just slept overnight, but when you wake up, your brain is groggy and even dizzy.
Many people think that this may be a lack of blood supply to the brain, but ignore the effects from "low blood pressure".
Experts interviewed
Fang Zhuyuan, Chief Physician of the Department of Cardiovascular Sciences, Jiangsu Provincial Hospital of Traditional Chinese Medicine and Vice President of Nanjing University of Chinese Medicine
Liu Jian, Chief Physician, Department of Cardiology, Peking University People's Hospital
Dizziness after waking up, may be low blood pressure "troublemaking"
After waking up in the morning, it takes a process for the human body to transition from a state of inhibition to a state of excitement. If you immediately get up to dress, wash, the body does not adapt, the blood flow is relatively slow, and you cannot deliver oxygen to the brain in time, you are prone to dizziness, dizziness and other discomfort.
If you often get dizzy after waking up, you should be wary of "orthostatic hypotension". Clinically, the incidence of this disease is 20%~50%, mostly in the elderly over 65 years old. Studies have shown that nearly 30% of the elderly over 80 years old in mainland China suffer from orthostatic hypotension, and the prevalence is higher if hypertension is combined.
Under normal circumstances, when the human body lies flat or squats, the blood distributed in the lower limbs in the body is relatively large, and after standing up, the blood can quickly return to the upper body to ensure the blood supply of vital organs such as the brain and heart.
Once the body's regulatory function declines, blood cannot flow back to the brain and heart in time, which will affect the blood supply to other parts of the body, and blood pressure will drop, and dizziness, weakness, and fainting will occur.
It should be reminded that in order to avoid falling, get up slowly, especially the elderly, sit up 3 minutes after waking up, sit on the side of the bed for 3 minutes and then slowly stand up, which can effectively reduce the occurrence of orthostatic hypotension.
If orthostatic hypotension occurs, squat, sit, or lie down as soon as possible to help maintain blood pressure.
In addition, the following reasons can also cause dizziness after waking up:
Increased blood viscosity
Cervical vertigo
Posterior circulation cerebral ischemia
Cardiogenic dizziness
Early morning, the "first hurdle" of daily blood pressure
Normal people's blood pressure is not static, showing the following changes throughout the day:
After waking up in the morning: people need to engage in various activities, the sympathetic nerves become excited, blood pressure increases, blood supply to various organs increases;
Nighttime: human activity decreases, the vagus nervous system becomes active, peripheral vasodilation, in general, the average nighttime blood pressure drops by 10%~20% compared with the day, and organ activity will also decrease;
Early the next morning: the sympathetic nerves are activated again, blood pressure rises, and organs function actively.
Blood pressure repeats itself every day, but some elderly and hypertensive patients will have a morning spike in blood pressure when the blood pressure regulation mechanism fails in the cycle of day and night.
Early morning hypertension is diagnosed if the average household blood pressure measurement ≥ 135/85 mm Hg and the average blood pressure measured in the office ≥ 140/90 mm Hg.
Studies have shown that early morning hypertension can cause serious damage to the heart, brain, kidneys and blood vessels, and is the primary risk factor for the high incidence of cardiovascular events, which can accelerate the progression of atherosclerosis, increase the incidence of left ventricular hypertrophy, as well as the risk of stroke attack, and impair renal filtration function.
Do 4 things well in the spring to stabilize blood pressure
Just entering the spring morning and evening temperature difference is large, cold is easy to stimulate vasoconstriction, causing people's blood pressure to rise and fluctuate, induce headache, dizziness and other symptoms, that is, Chinese medicine believes that "spring qi is in the head".
For patients with hypertension and coronary heart disease or cerebrovascular disease, vasoconstriction can cause a decrease in blood supply to the heart and brain, increasing the risk of angina, myocardial infarction, and stroke.
Meteorologists have found two "blood pressure fluctuations":
When the air pressure drops to the lowest value and the temperature rises to the maximum, the patients with cardiovascular and cerebrovascular disease are the most;
When the air pressure rises sharply at the lowest value or falls sharply at the peak, the number of cases is also higher.
It is recommended to do the following details to stabilize blood pressure "chaos":
1
Stay warm
Soon after the beginning of spring, the heating is usually stopped in the northern region, if you feel that the indoor temperature is low, you can turn on the air conditioning, electric heating and other warm equipment; When opening windows for ventilation and going out, remember to add clothes.
Elderly people should especially pay attention to reducing early morning and windy and cooling weather outings.
2
The diet focuses on 3 phases
Early spring: suitable for tonics, it is recommended to eat high-protein foods, such as lean meat, fish, eggs, shrimp, etc., supplemented by tongyang seasonings, such as ginger, green onion, garlic, toon, leeks, etc.;
Mid-spring: the temperature difference is large, sudden cold and heat, blood pressure is easy to rise suddenly, it is recommended to eat some foods unique to spring, such as chrysanthemum brain, wolfberry buds, snails, river mussels, etc.;
Late spring: the climate is warm, at this time the food can not be too warm and dry, it is recommended to be light, especially for hypertensive patients, to strictly control salt intake, limit calories, stabilize blood pressure.
3
Keep exercising
The premise is that the amount of activity should be moderate, avoid walking for a long time, standing for a long time, sitting for a long time, and lying down for a long time. Those with severe conditions should not suddenly change their position, pay attention to safety when going up and down stairs, getting on and off the car, and prevent stepping on the air and falling.
4
Avoid going to the toilet for long periods of time
Keep the stool smooth, avoid straining and squatting for a long time to avoid sudden increase in blood pressure and stroke; At the same time, try not to squat in the pit, use the seated toilet, relatively less prone to cerebrovascular accidents. ▲
Editor of this issue: Zhang Yu