Why Do I Keep Getting Dizzy When I Workout?

If you’re feeling dizzy when you workout, it could be due to dehydration, low blood sugar, or even something more serious. Here’s what you need to know.

Causes of Dizziness

Dizziness can be a symptom of many different things, so it is important to understand why you might be getting dizzy when you workout. Dizziness can be caused by dehydration, low blood sugar, anemia, infection, or low blood pressure. It can also be caused by a lack of sleep or fatigue, so it is important to listen to your body and recognize when you are feeling overwhelmed. In this section, we will explore the potential causes of dizziness and how to prevent it.


One of the most common causes of dizziness after exercising is dehydration. When your body does not have enough water, your blood pressure can drop, leading to low blood flow to your brain. This can cause a variety of symptoms including lightheadedness, confusion, vision problems, and even fainting. Dehydration might also lead to an electrolyte imbalance in your body as well as a decrease in oxygen availability. If you get dizzy on a regular basis when working out, you should make sure to drink plenty of fluids before, during, and after physical activity. Additionally, avoid caffeine and alcohol which act as diuretics and can exacerbate this issue.

Low Blood Pressure

One of the more common causes of dizziness during exercise is a drop in blood pressure. When we begin exercising, our heart rate and breathing rate increase as our body is attempting to provide plenty of oxygen-rich blood to the muscles. This causes an increase in metabolism, which leads to a drop in systolic (top number) blood pressure and diastolic (bottom number) blood pressure. This drop can make us feel lightheaded or dizzy. Additionally, standing up quickly from a sitting or crouching position can cause us to become dizzy due to a sudden decrease in the amount of blood going to our brain – caused by the force of gravity pulling that same newly circulated oxygen-rich blood back down towards our feet rather than up towards our brain. A common solution to this issue is drinking plenty of fluids before and during exercise – especially if you are exercising outdoors – as dehydration can lead to greater drops in blood pressure, thus leading to greater levels of dizziness.

Low Blood Sugar

Low blood sugar, also called hypoglycemia, can cause feelings of light-headedness and dizziness when exercising. When you exercise your body demands more energy than it does in a resting state. As a result, your body needs to tap into its fuel sources for this energy, which are carbohydrates and fats stored in the form of glucose. During physical activity the body tends to burn through these stores quickly. To make up for this, the liver releases more glucose into the bloodstream which helps to fuel muscles with energy. However if there is not enough stored up to compensate for the glucose loss due to physical activity then blood sugar levels can drop, resulting in dizziness or light-headedness while working out. Low blood sugar can also be caused by other factors such as too much insulin or diabetes medications, disorders associated with hormones or pancreatic function or inadequate food intake before exercising.


Dizziness during exercise can be caused by a variety of reasons, ranging from rapid changes in physical activity to a lack of hydration. Therefore, it is important to properly prepare for and monitor your workouts to help prevent dizziness. Here we will discuss the different ways to prevent dizziness and how to keep your body healthy when exercising.

Drink plenty of water

It is important to stay hydrated before and during exercise, so drink plenty of water. Dehydration can lead to dizziness during physical activity, as your body may be unable to regulate its temperature properly. It’s best to start hydrating a few hours in advance of exercise by drinking at least 16 ounces of water shortly before you begin exercising. Additionally, make sure you are drinking approximately 8 ounces of fluid every 15-20 minutes during your workout. If you are sweating heavily or engaging in strenuous activity for over an hour, a sports beverage can help replace lost electrolytes and energy stores. If it’s particularly warm outside, consider wearing lightweight clothing and taking frequent breaks in the shade or in front of a fan. When it comes to preventing dizziness from working out, the key is simply listening to your body’s signals so that you don’t overexert yourself or become dehydrated.

Eat a balanced diet

It is important to maintain a healthy and balanced diet when trying to reduce occurrences of dizziness after exercise. Eating foods with antioxidants and vitamins can help build up your body’s immunity, helping it better cope with exercise-induced stress. In general, the diet should include good sources of proteins, carbohydrates, fats, vitamins, minerals and water.

Protein: Eating lean proteins such as chicken, fish or eggs helps build strength and repair damaged muscles. Most meats contain iron which can help enhance oxygen in the body’s circulation system.
Carbohydrates: Complex carbohydrates are a great way to keep you energized during workouts. Consuming fruits and vegetables like sweet potatoes, bananas or avocados will ensure that you are consuming adequate fiber while avoiding processed sugars.
Fats: Healthy fats help the body absorb vital nutrients and provide an optimal energy source for activities such as walking or running during the workout routine. Fats should make up about 20-35% of total caloric intake for proper bodily function before and after workouts.
Vitamins: The best way to get your daily vitamin requirement is from natural food sources as opposed to supplements. Fruits and vegetables are naturally high in organic minerals that offer additional health benefits including protection from free radical damage caused by exercises such as weightlifting or intense aerobic activity.
Minerals: Calcium is an important mineral for maintaining good balance when exercising; this is found in dairy products such as milk or yogurt. Magnesium plays a role in muscle contraction and recovery post-workout; this mineral can be found in nuts, seeds and legumes like quinoa or tofu as well as green leafy vegetables like spinach or kale..
Water: Staying hydrated before during and after workouts has many benefits including improved oxygen delivery throughout the body which can aid in avoiding dizziness brought on by dehydration

Avoid strenuous activities in hot weather

For a variety of reasons, strenuous activities should be avoided when it’s hot outside. Things like running, jogging, and any outdoor sports should be done in the early morning or late evening when temperatures are cooler for best results.

Heat can cause your body to become dehydrated more quickly, increasing the chance of dizziness and other discomforts. It’s best to drink plenty of fluids before and during your workout to help keep yourself hydrated. An electrolyte solution with sodium or another electrolyte can also help replace lost nutrients and minerals while you work out in the heat.

In addition to avoiding strenuous activities in hot weather, it’s important to pay attention to warning signs that may indicate that you’re straining yourself too much or not taking appropriate precautions against dehydration and heat exhaustion. Signs such as sweating profusely, dizziness, rapid heartbeat or breathing, cramps/weakness in muscles are all signs that need immediate attention. If these signs arise during a workout session, it is advised that you take a break from activity and rest until feeling better before returning to your normal fitness routine.


If you’re feeling faint or dizzy during or after exercise, there could be a number of reasons why. Fortunately, there are treatments and remedies that can help reduce the frequency and severity of your dizziness, so you can continue to exercise without discomfort. In this section, we’ll discuss the various treatments available and how to use them to manage your dizziness.

Take breaks and rest

If you’re feeling dizzy while working out, it could be due to fatigue, dehydration or a sudden drop in blood pressure. To reduce your risk of feeling lightheaded or dizzy when you exercise, it is important to take breaks and rest between bouts of activity. Regular rests throughout the duration of an exercise regimen can help ensure that your body has an opportunity to replenish energy stores, rehydrate and process oxygen properly. Making sure that you are adequately hydrated prior to beginning any physical activity will also help reduce your risk for developing symptoms associated with dizziness or lightheadedness during exercise. Additionally, listening attentively to your body’s needs during exercise and taking appropriate rest periods can usually mitigate the adverse effects of a strenuous workout session.

Increase your salt intake

If you have been feeling lightheaded or dizzy after your workouts, one potential cause is a low salt intake. Sweating during and after physical activity can lead to an electrolyte imbalance. One of the main electrolytes lost through sweat is sodium. A deficiency in sodium can cause low blood pressure, which can lead to dizziness, fainting and fatigue during exercise.

In order to increase your salt intake to help solve this problem, consuming high-sodium foods such as pickles and olives or adding a pinch of table salt to snacks like rice cakes or adding salty seasonings like Soy Sauce or Tamari when cooking meals are all safe options that could prevent any potential lightheadedness you feel during exercise. You should also consider eating a snack with some added salt before exercising and drinking lots of fluids throughout the day. This will help ensure that your body has enough electrolytes while it’s trying to regulate its temperature during physical activity.

Take medications to reduce symptoms

If you often experience dizziness when working out, it is important to consult a doctor for an accurate diagnosis and treatment plan. In some cases, your doctor may recommend medications to help reduce the symptoms of dizziness. For example, if you suffer from labrynthitis, an infection or irritation in the inner ear which can cause significant dizziness and vertigo, your doctor may prescribe antibiotics to treat the infection. People with benign paroxysmal positional vertigo (a disturbance of sense of balance due to calcium crystals shifting in the ear) can be treated with medications as well as with a specific form of physical therapy called canalith repositioning maneuvers (CRM). Additionally, there are certain medications that can help reduce or eliminate the sensation of spinning that comes with vertigo caused by many conditions. That said, it is important that you discuss your individual needs and concerns with a medical professional before taking any medication for treating dizziness.

When to See a Doctor

If you are feeling dizzy when you’re exercising, it’s important to identify the cause and take steps to treat the condition. It could be a common issue due to dehydration or a more serious medical condition. If you’re feeling ongoing dizziness or other symptoms, it’s a good idea to see a doctor. Let’s explore the signs and symptoms to look out for and when it’s time to consult a medical professional.

If dizziness persists

If your dizziness continues or worsens after exercising, it may be necessary to visit a doctor to investigate any underlying medical causes. Experiencing recurring dizziness when working out can indicate problems such as anemia, low blood pressure, dehydration or heart problems. Your doctor might conduct tests such as a complete blood count, electrolyte levels, and other physical and neurological examinations to diagnose the cause of your dizziness.

Your doctor might also recommend lifestyle changes, such as avoiding overexertion while exercising or making changes in your diet. In some cases, medication may be required to help treat underlying conditions that could be causing the dizziness. In more severe cases, follow-up imaging scans might be needed in order to rule out stroke or other potential medical emergencies. When in doubt about the origin of your recurring spells of dizziness during exercise, consider consulting with a qualified medical professional for further evaluation and advice about potential treatments.

If you experience other symptoms

It is important to note that not all dizziness related to exercise is benign — if you are experiencing other symptoms alongside your dizziness, you should visit a doctor.

Dizziness can be a symptom of low blood pressure, anemia, dehydration or hypoglycemia (low blood sugar). Additionally, certain inflammatory issues — such as endocarditis, lupus and Lyme disease — may cause dizziness with exercise. If your dizziness persists after trying the above strategies or becomes more intense over time, it’s time to talk to your doctor.

Your physician will review your medical history and ask questions about the nature of your dizziness. Be sure to mention any other signs and symptoms: nausea, headache or an irregular heart rate are all indication that something more serious may be going on. Imaging studies like MRI or CT scans may also be required for further investigation.

If you have a history of heart disease

If you have a history of heart disease, it’s important to consider that your dizziness may be an indicator of an underlying cardiovascular issue. Exercise-induced dizziness may be a sign of elevation in your resting heart rate when exercising or an imbalance between oxygen supply and demand during exercise. In cases such as this, it’s important to get your condition checked by a doctor immediately.

Your physician can perform tests to check your cholesterol levels, blood pressure and overall cardiovascular health. If heart disease is found to be the cause of your dizziness, appropriate treatments can be started right away in order to improve blood circulation and reduce symptoms associated with exercise related dizziness.

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