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9 Reasons You Need Aerobic Exercise

Updated: Mar 10

Woman Running

Cardiovascular exercise is key for its anti-inflammatory effects, aiding injury repair. Sedentary lifestyles, pollution, and smoking can slow this process. Aerobic activities like walking and cycling boost heart and lung efficiency, but they must be done regularly and with enough intensity to be effective. To fully benefit, one should exercise within their aerobic capacity. Next, we'll explore nine significant health benefits of aerobic exercise and how to calculate your aerobic zone.

Article Index:

Aerobic Zone

Conclusion & References


Body Inflammation Image

1. Mitigating Inflammation

Aerobic exercise, a cornerstone of physical fitness, has profound effects on the body's physiological systems, including the circulatory and immune systems. One of the key benefits of aerobic exercise is its ability to enhance capillary density, thereby improving the body's capacity to transport essential nutrients and oxygen to soft tissues such as muscles, ligaments, tendons, and connective tissues. This increased blood flow accelerates healing and efficiently removes waste by-products generated during the healing process or as part of regular cellular metabolism.

At a molecular level, aerobic exercise triggers a systemic response in the body characterized by the release of anti-inflammatory molecules. These include interleukin-6 (IL-6), interleukin-10 (IL-10), and interleukin-1 receptor antagonist (IL-1ra). IL-6, primarily released by skeletal muscle during exercise, acts as a potent anti-inflammatory cytokine. It stimulates the production of IL-1ra and IL-10, both of which have anti-inflammatory properties, thereby mitigating inflammation and supporting tissue recovery and regeneration.

Woman on Stationary Bike

In addition to upregulating anti-inflammatory molecules, regular aerobic exercise also promotes the downregulation of pro-inflammatory molecules. These include tumour necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β), both of which are primarily produced by adipose tissue. By reducing adipose tissue, aerobic exercise can decrease the production of these pro-inflammatory cytokines, further reducing systemic inflammation.

The anti-inflammatory effects of aerobic exercise play a pivotal role in injury recovery and prevention. Moreover, these effects offer a more holistic and sustainable approach to managing chronic inflammation, providing a myriad of health benefits without the potential adverse effects of long-term medication use. Therefore, aerobic exercise stands as a superior strategy for mitigating inflammation, underscoring its importance in maintaining overall health and well-being.

The anti-inflammatory effects of aerobic exercise play a pivotal role in injury recovery and prevention.


Mitochondria Diagram

2. Elevated Energy Production

Aerobic exercise serves a vital function in boosting mitochondrial performance within cells. As the primary energy-producing organelles, mitochondria are responsible for generating the power and energy needed to carry out various bodily processes. Engaging in aerobic exercise leads to improved mitochondrial function, directly resulting in a heightened ability to produce energy. (1)

Through the conversion of nutrients into adenosine triphosphate (ATP), mitochondria supply a readily accessible form of energy that is utilized by all body cells. ATP enables diverse functions, from healing injuries and eliminating waste to providing energy for muscles during activities such as walking, talking, or performing any other action. (1)

As individuals age or sustain injuries, their capacity to produce ATP naturally diminishes. Among the limited factors that can enhance ATP production naturally, exercise stands out as an effective method of increasing energy levels. The augmentation of ATP production is a crucial way in which exercise can counteract the impact of aging on the body's biological clock, promoting overall health and vitality.


Person Holding Their Low Back

3. Neuropathic Pain Relief and Neuroplasticity

Aerobic exercise has been demonstrated to play a pivotal role in the mitigation of nerve pain and the acceleration of neuroplasticity. Engaging in regular aerobic activity induces the release of various neurotrophic factors, such as brain-derived neurotrophic factor (BDNF), glial cell line-derived neurotrophic factor (GDNF), and insulin-like growth factor-1 (IGF-1), which promote neuronal growth, differentiation, and synaptic plasticity. These factors facilitate the process of neuroplasticity, leading to improved pain modulation and a reduction in neuropathic pain symptoms.

Moreover, aerobic exercise has been shown to increase regional cerebral blood flow and promote neurogenesis, thereby enhancing the central nervous system's adaptive capacity. The consequential improvements in pain perception and central sensitization contribute to more effective management of neuropathic pain, supporting the integration of aerobic exercise as a vital component in comprehensive pain management strategies for medical practitioners.

Note: From a clinical standpoint, it has been observed that for patients experiencing various nerve compression syndromes, such as sciatica or carpal tunnel, engaging in aerobic exercise frequently reduces pain.


Taking Blood Pressure

4. Blood Pressure Regulation

Aerobic exercise is widely recognized for its positive impact on blood pressure regulation, as it promotes cardiovascular health and lowers the risk of hypertension. Engaging in regular aerobic activities induces various physiological adaptations that contribute to blood pressure reduction. One key adaptation is the improvement of endothelial function, which refers to the ability of blood vessels to dilate and constrict as needed. Aerobic exercise stimulates the production of nitric oxide, a vasodilatory molecule that helps relax blood vessels and reduce peripheral resistance. Consequently, this decreases the overall workload on the heart and lowers blood pressure.

Another mechanism through which aerobic exercise affects blood pressure is by promoting healthy body weight and reducing adipose tissue. Excess body fat, particularly visceral fat, contributes to the release of pro-inflammatory molecules, such as tumour necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6), which are associated with increased blood pressure. Regular aerobic exercise aids in weight management, thereby mitigating the negative effects of adipose tissue on blood pressure. Moreover, aerobic activity helps decrease levels of stress hormones, such as cortisol and adrenaline, which are known to constrict blood vessels and increase heart rate, resulting in elevated blood pressure.


Person Measuring Their Blood Sugar Level

5. Blood Sugar Regulation

Aerobic exercise is instrumental in maintaining healthy blood sugar levels, as it facilitates the regulation of glucose metabolism and reduces the risk of developing type 2 diabetes. Engaging in regular aerobic activities leads to several physiological adaptations that contribute to improved blood sugar control. One such adaptation is the enhancement of insulin sensitivity, which enables cells to utilize glucose more efficiently. As the body's demand for energy increases during aerobic exercise, muscle cells increase glucose uptake from the bloodstream, resulting in better glycemic control.

Another mechanism through which aerobic exercise helps regulate blood sugar levels is by promoting weight management and reducing excess body fat. Excess adiposity, particularly visceral fat, is associated with insulin resistance, a condition in which cells fail to respond appropriately to insulin signals, leading to elevated blood sugar levels. By engaging in regular aerobic activity, individuals can maintain a healthy weight and prevent the accumulation of adipose tissue, ultimately contributing to improved insulin sensitivity and blood sugar regulation.


Person Smiling Feeling Good

6. Chronic Pain Reduction

Aerobic exercise has been recognized as an effective non-pharmacological intervention for managing and reducing chronic pain. Regular aerobic activities induce several physiological and biochemical changes that contribute to pain relief and overall well-being. One such change is the release of endorphins, the body's natural pain-relieving chemicals that interact with opioid receptors in the brain to alleviate pain and promote a sense of well-being. Aerobic exercise also stimulates the release of serotonin and norepinephrine, neurotransmitters that can modulate pain perception and improve mood.

Another way in which aerobic exercise helps mitigate chronic pain is by enhancing muscle strength, flexibility, and joint mobility. Weak and inflexible muscles often contribute to pain, as they place additional strain on joints and other supporting structures. Regular aerobic activity, particularly when combined with resistance training and stretching exercises, can help to strengthen and lengthen muscles, reduce muscle imbalances, and improve overall joint function. Moreover, aerobic exercise has been shown to have anti-inflammatory effects, as it decreases the production of pro-inflammatory cytokines, such as tumour necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β). Reduced inflammation can lead to a decrease in pain and an improvement in joint and tissue health.


Woman Sleeping

7. Sleep Improvement

Aerobic exercise has been widely recognized for its positive impact on sleep quality and duration. Engaging in regular aerobic activities leads to a multitude of physiological and psychological changes that contribute to improved sleep patterns and overall well-being. One such change is the regulation of the body's circadian rhythm, the internal clock that governs sleep-wake cycles. Aerobic exercise, especially during daylight hours, helps synchronize the circadian rhythm with the natural light-dark cycle, promoting a more consistent sleep schedule and making it easier to fall asleep and wake up at appropriate times.

Another mechanism through which aerobic exercise enhances sleep is by reducing stress and anxiety levels. Physical activity stimulates the release of endorphins and other mood-boosting neurotransmitters, such as serotonin, which can help alleviate stress, anxiety, and symptoms of depression. Reduced stress and anxiety contribute to a calmer mental state, making it easier for individuals to relax and fall asleep. Additionally, aerobic exercise has been shown to increase the amount of time spent in deep, restorative sleep stages, allowing for better overall sleep quality and more effective physical and mental recovery.


Yoga Exercises by the Beach

8. Immune System Strengthening

Aerobic exercise is well-known for its positive effects on the immune system, enhancing its function and contributing to overall health and well-being. Regular aerobic activities induce several physiological adaptations that bolster the body's defence mechanisms against infections and diseases. One such adaptation is the increased circulation of immune cells, such as natural killer cells, neutrophils, and lymphocytes. Aerobic exercise promotes the mobilization of these immune cells, enabling them to circulate more efficiently through the body and perform their essential functions, such as identifying and eliminating pathogens.

Another way in which aerobic exercise strengthens the immune system is by modulating the production of stress hormones, such as cortisol and adrenaline. Chronic stress can suppress immune function, making the body more susceptible to infections and illnesses. Regular aerobic activity helps to mitigate stress levels, leading to a balanced hormonal environment that supports optimal immune function. Furthermore, aerobic exercise has been shown to have anti-inflammatory effects, as it decreases the production of pro-inflammatory cytokines, such as tumour necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β). Reduced inflammation can contribute to a more robust immune response and overall better health.


Scanning a Persons Brain

9. Cognitive Function Enhancement

Aerobic exercise is widely recognized for its positive effects on cognitive function, promoting improved memory, attention, and problem-solving abilities. Regular aerobic activities lead to several physiological and biochemical adaptations that enhance brain health and overall mental performance. One key adaptation is the increased production of brain-derived neurotrophic factor (BDNF), a protein that promotes the growth and survival of neurons, as well as the formation of new synapses. Higher levels of BDNF have been associated with better cognitive function and reduced risk of neurodegenerative diseases.

Another mechanism through which aerobic exercise improves cognitive function is by promoting neurogenesis, the process of generating new neurons within the brain, particularly in the hippocampus, a region involved in learning and memory. Regular aerobic activity has been shown to stimulate the proliferation of neural stem cells and enhance synaptic plasticity, which is crucial for information processing and long-term memory formation. Additionally, aerobic exercise has been found to improve cerebral blood flow, ensuring that the brain receives adequate oxygen and nutrients to support optimal function. Enhanced blood flow also contributes to the efficient removal of waste products and toxins that may negatively impact cognitive performance.


Runner Stretching Their Leg

Determining Your Aerobic Zone:

To calculate your optimal aerobic heart rate zone, follow these steps to ensure you're exercising within the most effective range for developing aerobic capacity and promoting injury recovery:

  1. Subtract your age from 220 to find your maximum heart rate. Example: If you are 40 years old, the calculation would be 220 - 40 = 180.

  2. Calculate the lower end of your aerobic heart rate zone by multiplying your maximum heart rate (from step 1) by 0.6. Example: Continuing with the 40-year-old individual, the calculation would be 180 x 0.6 = 108.

  3. Calculate the upper end of your aerobic heart rate zone by multiplying your maximum heart rate (from step 1) by 0.7. Example: For the same 40-year-old individual, the calculation would be 180 x 0.7 = 126.

The resulting range (in this example, 108-126 beats per minute) represents your optimal aerobic heart rate zone. Engaging in exercise within this zone will enhance your aerobic capacity and facilitate injury recovery most effectively.

Exercising above this heart rate zone may increase the risk of injury, whereas exercising below this zone may not yield the maximum benefits from your aerobic workout. By adhering to this calculated range, you can optimize the efficiency of your aerobic exercise while minimizing the risk of injury.


Two Women Running Down the Road

How Much Per-Week?

Based on recommendations from multiple sources, the right amount of optimum aerobic exercise per week for adults is at least 150 minutes of moderate-intensity aerobic exercise or 75 minutes of vigorous-intensity aerobic exercise. This amount of exercise can be achieved through activities such as brisk walking, running, cycling, swimming, or dancing. Alternatively, a combination of moderate and vigorous exercise can also be effective. For older adults (ages 65 and above), the recommendations are the same, with an emphasis on engaging in at least 150 minutes of moderate-intensity aerobic physical activity throughout the week.

In addition to the American Heart Association and the World Health Organization, the Centers for Disease Control and Prevention also recommends similar guidelines for aerobic exercise. The CDC suggests that individuals engage in at least 150 minutes of moderate-intensity aerobic exercise or 75 minutes of vigorous-intensity aerobic exercise per week. They also highlight the importance of breaking up prolonged sitting time and recommend muscle-strengthening activities on two or more days per week.

However, it's important to keep in mind that these recommendations are general guidelines and that the right amount of exercise will vary depending on individual factors such as age, fitness level, and health status. Therefore, it's essential to consult with a healthcare professional to determine a personalized exercise plan that meets an individual's specific needs and goals. By doing so, individuals can ensure they are engaging in the right amount of aerobic exercise to promote overall health and well-being.


Mother and Child

Conclusion - 9 Reasons Why You Need Aerobic Exercise

In conclusion, aerobic exercise offers a wealth of health benefits that go far beyond simply improving cardiovascular fitness. By incorporating regular aerobic activities into your daily routine, you can take charge of your health and well-being, allowing you to live life to the fullest and enjoy every moment with increased vitality. The diverse benefits of aerobic exercise, including better blood pressure regulation, enhanced blood sugar control, reduced chronic pain, improved sleep quality, a stronger immune system, and boosted cognitive function, demonstrate the transformative power of an active lifestyle.

Embracing aerobic exercise is about more than just maintaining good health; it's about enhancing the quality of your life, empowering you to pursue your passions, connect with loved ones, and experience the world around you with greater enthusiasm and energy. By finding enjoyable and sustainable aerobic exercises that resonate with your interests and lifestyle, you can establish a consistent and enjoyable fitness routine that enriches your life in countless ways.

Aerobic exercise is a key ingredient in living a vibrant, fulfilling life. Investing in your health and well-being through regular physical activity can unlock your full potential, allowing you to enjoy every aspect of your life with boundless energy and zest. individuals to lead healthier, happier, and more fulfilling lives.



Photo Dr. Brian Abelson

Dr. Abelson is committed to running an evidence-based practice (EBP) incorporating the most up-to-date research evidence. He combines his clinical expertise with each patient's specific values and needs to deliver effective, patient-centred personalized care.

As the Motion-Specific Release (MSR) Treatment Systems developer, Dr. Abelson operates a clinical practice in Calgary, Alberta, under Kinetic Health. He has authored ten publications and continues offering online courses and live programs to healthcare professionals seeking to expand their knowledge and skills in treating musculoskeletal conditions. By staying current with the latest research and offering innovative treatment options, Dr. Abelson is dedicated to helping his patients achieve optimal health and wellness.



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