Have you ever felt dizzy when getting out of bed quickly? Understand why this happens

Have you ever got up from bed or from the couch so quickly that you felt a little dizzy? So know that you are not alone!

This is a common phenomenon that many people experience. But what exactly happens in the body when such a sensation arises? Let's understand!

The brain and oxygen: a fundamental partnership

Our brain is a fantastic machine, responsible for all our thoughts, decisions and movements. To function efficiently, it needs a constant supply of oxygen, carried by our blood.

When the supply of oxygen to the brain is reduced or interrupted, even for a few seconds, we may feel dizzy or even faint.

Blood pressure and dizziness: the relationship

If we are sitting or lying down for a long period of time, our blood pressure adjusts to that position. When we stand up quickly, our body has to work faster to send blood (and therefore oxygen) to the brain.

This process is not instantaneous and may result in a brief drop in blood pressure, also known as orthostatic hypotension.

At these moments, our brain perceives the reduction of oxygen and, as a result, we may feel a sensation of dizziness or “airy head”.

This sensation usually lasts only a few seconds as the body quickly adjusts blood pressure to compensate.

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Factors that intensify dizziness

Some people are more susceptible than others to this dizziness, and some aspects can contribute to this:

• Dehydration: when we don't drink enough water, our blood volume can decrease, making it difficult for blood pressure to adapt quickly;

• Medications: some medications, especially antihypertensives, can influence the way our body regulates blood pressure;

• Age: As we age, the vascular system and heart may not react as quickly as they used to, making us more likely to feel dizzy when we stand up.

Tips to avoid dizziness

Fortunately, there are simple steps you can take to prevent or reduce dizziness when moving quickly:

• Get up slowly: give your body time to adjust. If you are lying down, sit down first, wait a few seconds and then stand up;

• Stay hydrated: drinking water regularly throughout the day can help keep your blood volume stable;

• Avoid sudden changes in posture: If you know you are prone to feeling dizzy, do not change posture quickly, especially if you are doing activities that require balance or concentration.

When to seek help

Although the dizziness While standing up quickly is common and generally harmless, if you notice that you have been experiencing this frequently or for prolonged periods, it is advisable to see a doctor. Dizziness can be a symptom of other underlying conditions that require attention.