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Light Therapy Explained: Do Different Colours and Frequencies Really Work?

From glowing red saunas to calming blue light boxes and pulsing LED helmets, coloured light therapies are becoming increasingly popular. But do they actually work — and if so, how? 

In this post, we’ll take a closer look at the science and claims behind different types of light and frequency-based therapies, and what the evidence really says.

What Is Light Therapy?

Light therapy involves the use of specific wavelengths (colours) and frequencies of light to influence physical or psychological wellbeing. 

It's based on the idea that different light frequencies can interact with the body in unique ways — from stimulating skin repair to regulating mood or even affecting brainwave activity.

Common Types of Light Therapy and What They're Used For

1. Blue Light – Mood, Sleep & Skin Health

Used for: Seasonal Affective Disorder (SAD), sleep disorders, acne treatment.

How it works: Blue light mimics the effects of sunlight on the body, helping regulate circadian rhythms and suppress melatonin during the day. It's also antibacterial and used in dermatology for acne treatment.

Does it work?

Yes, for specific uses. Blue light therapy is well-supported for SAD and circadian rhythm disorders. Dermatologically, blue LED light can reduce acne-causing bacteria with regular use.

2. Red Light (Low-Level Light Therapy or LLLT)

Used for: Pain reduction, inflammation, wound healing, skin rejuvenation, hair growth.

How it works: Red and near-infrared light penetrates the skin and is thought to stimulate mitochondria in cells, enhancing energy production and tissue repair.

Does it work?

Evidence is growing, especially for skin healing, inflammation reduction, and hair regrowth. Studies show red light may help with joint pain and muscle recovery, though outcomes vary depending on dosage and individual response.

3. Infrared Light – Deep Tissue Therapy

Used for: Muscle and joint pain, improved circulation, and sometimes detoxification (e.g., infrared saunas).

How it works: Infrared wavelengths penetrate deeper than visible light, providing warmth that may increase blood flow and aid in muscle relaxation.

Does it work?

Many people report relief from chronic pain and fatigue, though scientific consensus is still emerging. Its benefits for relaxation and recovery are promising.

4. Green Light – Migraine and Pain Relief

Used for: Migraine management, anxiety, chronic pain.

How it works: Green light has a calming effect and may influence the thalamus, which processes pain signals.

Does it work?

Early studies suggest green light may reduce migraine frequency and intensity, and users report feeling calmer. However, it's still an emerging area with limited clinical trials.

5. Yellow or Amber Light – Skin and Emotional Health

Used for: Sensitive skin, rosacea, fine lines, mood support.

How it works: Yellow light may soothe redness and irritation, while also promoting lymphatic flow and collagen production.

Does it work?

Less studied than red or blue light, but often included in beauty treatments for its gentle approach. Effects tend to be subtle and best seen over time.

6. Flickering and Frequency-Based Light (e.g., Gamma Light Therapy)

Used for: Brain stimulation, cognitive decline, memory support (especially in dementia research).

How it works: Exposure to flickering light at specific frequencies (e.g., 40 Hz) may help synchronise brainwave patterns and stimulate neural activity.

Does it work?

Still experimental. Early studies, particularly in Alzheimer’s research, show promise but more research is needed before recommending as mainstream therapy.

Are These Therapies Safe?

Generally, yes — most light therapies are non-invasive and safe when used properly. However:

Overuse can cause eye strain or skin irritation.

Photosensitive conditions or medications (like certain antibiotics or epilepsy) may increase risks.

Always wear protective eyewear when recommended, and follow manufacturer guidelines or consult a practitioner.

Do They Really Work?

The answer is nuanced. Some light therapies, like blue light for SAD or red light for skin healing, have strong scientific support. Others, such as green or flickering light therapies, are still emerging. That said, individual response varies — what works for one person may not for another.

Consistency and correct usage are key, especially with home-use LED devices. Results tend to appear gradually, over weeks rather than days.

Final Thoughts

Coloured light therapy may sound a bit like wellness hype, but many of its applications are grounded in solid research. Whether you're looking to boost your mood in the dark winter months, reduce inflammation, or support your skin health, there may be a spectrum of solutions worth exploring.

As always, it’s best to approach any new treatment — even something as seemingly gentle as light — with both curiosity and caution. Speak to a healthcare provider if you’re considering light therapy for a medical condition, and choose clinically tested devices from reputable sources.

Supporting Life with High-Functioning Asperger’s: Treatments and Guidance for Loved Ones

High-functioning Asperger’s—often referred to as part of the autism spectrum (ASD)—can present unique challenges in everyday life, not just for the individuals living with it but also for their spouses, partners, and families. 

Although it’s no longer diagnosed as a separate condition under the DSM-5 (now integrated under the umbrella of ASD), many people still identify with the term “Asperger’s,” especially when referring to high-functioning profiles.

While people with high-functioning Asperger’s often possess average or above-average intelligence, they may struggle with social interactions, emotional regulation, sensory sensitivities, and rigid routines. 

With the right support and strategies, however, life can become far more manageable—and even thrive.

This post explores helpful treatments for individuals and offers guidance for those who love and support them.

Understanding High-Functioning Asperger’s

People with high-functioning Asperger’s might face challenges such as:

Difficulty reading social cues or responding to unspoken social norms

Sensory sensitivities (to noise, touch, light, smells, etc.)

Struggles with executive functioning—like planning, organising, or transitioning between tasks

Intense focus on specific interests

Difficulty expressing or interpreting emotions

Despite these challenges, many develop successful careers, relationships, and rich inner lives. The key often lies in identifying personalised strategies that support emotional well-being and communication.

Effective Treatments and Supports for Individuals

1. Cognitive Behavioural Therapy (CBT)

CBT helps address anxiety, negative thinking patterns, and emotional regulation. Therapists who specialise in neurodiverse clients can tailor CBT to accommodate the specific thinking styles of people with Asperger’s.

2. Occupational Therapy

This form of therapy is particularly useful for sensory integration issues and can help with skills such as self-care, workplace functioning, and managing daily routines.

3. Social Skills Training

Group or individual social coaching can be invaluable in improving conversational skills, body language interpretation, and understanding social dynamics. Many adults find this improves confidence in both personal and professional settings.

4. Speech and Language Therapy

Though more commonly associated with children, adults can also benefit—particularly if communication tends to be very literal or overly formal.

5. Medication (When Needed)

While there’s no medication specifically for Asperger’s, co-occurring conditions like anxiety, depression, or ADHD may be treated pharmacologically under a GP or psychiatrist's supervision.

6. Peer Support and Community Groups

Autistic-led groups and online communities provide a safe space for sharing experiences and strategies. Many individuals find comfort in talking with others who “get it.”

7. Routine and Structure

Creating predictable routines can help reduce anxiety. Planners, apps, and visual schedules can be excellent tools.

Support for Spouses and Family Members

Supporting a loved one with high-functioning Asperger’s can be rewarding, but also emotionally taxing without the right resources. Here are some strategies that can help:

1. Education Is Empowerment

Learning about Asperger’s can reduce misunderstandings. It can help you reframe behaviours that seem distant, abrupt, or overly rigid as neurodivergent traits, not personal slights.

2. Couples Counselling (with Neurodiverse Awareness)

Counselling with a therapist familiar with neurodiverse relationships can foster better communication, especially when emotional processing and expression differ greatly.

3. Clear, Direct Communication

Metaphors, sarcasm, or emotional subtext may not always land. Being explicit and honest—while kind—can avoid frustration and build trust.

4. Respect Their Need for Space

Overstimulation or emotional overload can lead to shutdowns or withdrawal. Giving space during these times, without judgement, can be an act of love.

5. Celebrate Strengths

Focus on what your loved one can do—their creativity, loyalty, deep interests, or logical thinking. Let their strengths flourish.

6. Support for Yourself

Don’t forget your own well-being. Join support groups, read about neurodiverse relationships, and give yourself permission to feel the full range of emotions that can come with being a partner or parent in this situation.

Final Thoughts

Living with high-functioning Asperger’s can be complex, but with the right tools, both individuals and their loved ones can lead deeply fulfilling lives. The journey may involve adjustment and patience, but it’s also one that can be rich with insight, resilience, and connection.

If you’re navigating life with high-functioning Asperger’s—or love someone who is—know that you’re not alone. With understanding, empathy, and support, thriving is entirely possible.

These resources will be of help:-

https://www.nhs.uk/conditions/autism/support

https://www.autism.org.uk/

https://autismsociety.org/

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