Red Light Therapy vs Sunlight

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Red Light Therapy vs Sunlight

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Introduction: Red Light Therapy vs Sunlight

Light is as vital to your body as nutrients, oxygen, and water. Light not only makes it possible to perceive objects but is also essential to all living things. With technological advancements in science, therapies such as red light therapy have been developed, employing specific wavelengths of light to impart benefits that some individuals can no longer get due to hectic lifestyles. In contrast, sunlight is a natural source of energy that encompasses a wide spectrum of light, with some wavelengths being beneficial and others not. In this blog, we will discuss the differences between sunlight and red light therapy, their advantages, side effects, risks, and how they impact human lives.

What is Red Light Therapy?

Red light therapy panel in use

Red light therapy is a treatment process involving the use of specific red and near-infrared light wavelengths to increase the metabolism of your body. Let's see how red and near-infrared light can activate metabolism and their impact on your body. Red and near-infrared light travel through your cells and stimulate the power units of your cells, the mitochondria. Mitochondria are responsible for the production of ATP, an organic molecule required in all biochemical reactions. By speeding up the production of ATP, red light therapy helps in all metabolic processes, maintaining your overall health.

Additionally, red light therapy induces the production of elastin and collagen fibers, which are structural proteins necessary for maintaining cell shape. This means you can obtain youthful, smooth skin with the aid of red light therapy. It also boosts blood flow, a vital function that supplies nutrients and oxygen to all the cells in your body. Cells work perfectly if they have enough nutrients, oxygen, and energy. Red light therapy also minimizes inflammation and oxidative stress, leaving you feeling relaxed and calm. It can treat different diseases, their symptoms, and their causes. By using an FDA-approved machine, such as one from our Total Spectrum series, you can address many health problems, improve your skin's appearance, and achieve pain relief without undergoing invasive procedures.

What is Sunlight Exposure?

Sunlight shining through trees

Essentially, when discussing sunlight exposure, we're referring to spending time in the natural light of the sun. It's not just about brightening things up; sunlight is vital for all living organisms—we can't survive without it.

One huge reason is that the sun's UVB rays assist our bodies in producing Vitamin D, which is important for calcium absorption and bone health. Without sufficient Vitamin D, we may face issues like arthritis and osteoporosis. Most people, particularly those who don't spend much time outdoors, don't receive enough sunlight and can become deficient.

Sunlight also helps our brains make serotonin, a chemical that improves our mood and combats depression. That's why we generally feel more cheerful and lively on sunny days. Sunlight also keeps our body's natural sleep-wake cycle, known as the circadian rhythm, in check, helping us stay well and healthy.

However, it's a balancing act. Too much sun can be harmful to your skin. Getting too much exposure without protection can lead to sunburn, speed up skin aging, and even increase your risk of skin cancer, like melanoma. So, while sunlight is good for you, it's essential to be smart about it.

For most individuals, 10 to 30 minutes of daily sun exposure is sufficient to produce health benefits without the risk. It's always optimal to listen to your body and regulate your sun exposure to avoid damage while still enjoying its positive effects.

Key Differences Between Red Light Therapy and Sunlight

When comparing red light therapy vs sunlight, we will discuss their wavelengths, benefits, safety, and convenience.

1. Wavelength and Spectrum

Red light therapy is a non-surgical technique employing specific red and near-infrared wavelengths of light, which penetrate the skin to a greater extent and activate cellular processes. The therapy is specific regarding the light and wavelengths employed. In contrast, sunlight has a wide spectrum of light, from visible light to ultraviolet rays and infrared radiation. Although sunlight is vital for many of the body's functions, too much exposure is dangerous.

2. Body Benefits

The exact wavelengths of red and near-infrared light emitted in red light therapy stimulate the mitochondria, which produce more energy. This additional energy is essential for cell function and regeneration. RLT also increases collagen and elastin production and reduces inflammation and oxidative stress. On the other hand, sunlight contains ultraviolet B rays that the body requires for the production of vitamin D. Sunlight also stimulates serotonin secretion, improving mood and regulating the circadian body rhythm, which is crucial for good sleep.

3. Control and Safety

In red light therapy, you can exercise total control over the treatment with an appropriate FDA-approved unit, for instance, a Total Spectrum device. You are free to alter the light's intensity and the duration of its use, though the generally recommended duration is between 10-20 minutes. Comparatively, sun exposure is uncontrolled because the sun is natural. Too much sun exposure can result in sunburn, skin damage, and an increased risk of skin cancer.

Wavelength and Penetration

As you are aware, red light therapy involves certain wavelengths of red and near-infrared light. The wavelength range is restricted, typically 630–1100 nm. Red light in the range of 630–700 nm primarily targets the outer layers of the skin, whereas near-infrared light in the range of 700–1100 nm penetrates deeper into tissues, muscles, and joints. These specific lights are what stimulate cellular repair and other healing processes. Conversely, sunlight has a wide spectrum of light wavelengths ranging from ultraviolet (less than 400 nm) through visible light (400–700 nm) and into infrared (more than 700 nm). Infrared light partly penetrates the skin, whereas UV and the majority of visible light only act on the surface. UVB reaches only the outer layers of the skin and causes sunburn and the generation of vitamin D. In general, the penetration of sunlight is less concentrated than that of red light therapy, which is aimed at reaching specific depths for therapeutic purposes.

Risks and Side Effects

Side Effects of Red Light Therapy

Red light therapy is harmless for most people, especially if done as directed. However, like with any therapy, there are certain mild side effects. Some people may experience mild redness, tightness, or warmth on the skin after a session. This tends to resolve quickly and is harmless.

If the light is too intense or the session lasts too long, it could lead to temporary irritation, particularly on sensitive skin. Occasionally, individuals could experience headaches or dizziness, especially if they look directly at the light without protective eyewear. That's why direct looking at the light should be avoided, and protective eyewear should be worn during sessions if necessary.

Also, individuals with some health conditions or those who take medications that make them more sensitive to light should consult a doctor before use. Side effects are, overall, rare and typically mild, particularly when red light therapy is applied appropriately.

Side Effects of Sun Exposure

It is healthy to get a little sun; it causes your body to produce vitamin D and can make you feel better. But, as with anything, too much sun can be a problem.

The most common problem is sunburn, which occurs when your skin is burned by the UV rays of the sun. This can cause your skin to be red and painful and even peel.

If you sit in the sun often and don't protect your skin, you could begin to notice signs of aging sooner, such as wrinkles, spots, and dryness. Worse yet, it can make you more likely to develop skin cancer, with a dangerous kind being melanoma.

You can also develop heat exhaustion or heatstroke if you are out under the sun for an extended period and fail to hydrate. Others may develop itchy or irritated skin due to sun allergies or rashes.

To protect yourself, it's a good idea to wear sunblock, cover up with clothing, and attempt to stay out of the sun between 10 a.m. and 4 p.m., which is usually the hottest time of day.

Conclusion

When comparing red light therapy and sunlight, red light therapy is a beneficial and safe way that provides numerous health advantages. You can regulate the exposure to red light therapy with an appropriate device, such as one from the Total Spectrum series. RLT promotes cellular repair, improves skin health, and addresses a variety of conditions. As a scientific advancement, RLT not only heals but also enhances a person's general health. Sunlight, on the other hand, is a natural source of light that contributes to the formation of vitamin D and helps with mood, but it can harm the skin if one gets exposed to it excessively. While red light therapy should be used for safe, specific treatment, sunlight is important for overall health when used moderately and with caution.

FAQS: Addressing Common Questions

How much red light is in sunlight?

Yes, sunlight does contain red light. Red light is part of the visible light we can see and constitutes a small amount of sunlight. It's located at the end of the visible light spectrum, just before the light converts to infrared.

Can I go in the sun after red light therapy?

Yes, you can go in sunlight after red light therapy because these two types of light have different effects on your skin and body. However, it is important to use sunscreen and wear protective clothing when you go out in the sun.

Is red light better than no light?

Yes, red light therapy is much better than nothing because it utilizes targeted wavelengths of near-infrared and red light that pass through your skin to induce natural healing processes. These wavelengths enhance the energy output of mitochondria. On balance, the therapy is healthy for cellular restoration, improving skin health, and eliminating inflammation.

Does red light therapy give vitamin D?

No, red light therapy does not produce vitamin D.

References

  1. Syed SB, Ahmet I, Chakir K, et al. "Sunlight and health: shifting the focus from vitamin D3 to photobiomodulation by red and near-infrared light." Ageing Research Reviews. 2020;61:101089. doi:10.1016/j.arr.2020.101089.

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