Cats are sensitive creatures, and seasonal changes affect them more than we might think. Just like humans, felines can experience Seasonal Affective Disorder (SAD) when exposed to shorter days and less natural sunlight.

During fall and winter, reduced daylight can lower serotonin (the “feel-good” hormone) and increase melatonin, leading to fatigue, mood changes, and even depression. Indoor-only cats are particularly vulnerable since they spend little time in natural light, while outdoor cats may also struggle with reduced activity and stimulation during colder months.

The result? Cats may seem less playful, sleep more, or even show signs of aggression and restlessness.

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Why Light Therapy Helps Cats with SAD

Light therapy, also called low-level laser therapy (LLLT) or photobiomodulation, mimics the benefits of natural sunlight without harmful UV rays. By exposing pets to red or near-infrared light, their cells absorb photons, boosting ATP production (cellular energy) and restoring balance.

Veterinarians often recommend 30 minutes of daily light therapy to help cats regain energy, regulate mood, and maintain healthy biological rhythms.

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Beyond Seasonal Depression: Other Benefits of Light Therapy for Pets

The effects of light therapy go beyond mood regulation. By energizing cells and improving circulation, it has been shown to support healing and pain relief in animals. Documented benefits include:

• Joint pain & osteoarthritis
• Muscle soreness & inflammation
• Wounds, cuts, and skin conditions
• Soft tissue and ligament injuries
• Faster post-surgical recovery

For example, a clinical study on horses with chronic back pain showed that over 70% returned to training within three months after consistent red light therapy. Similar studies in dogs demonstrated faster recovery after spinal surgery with LLLT.

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How It Works in Animals

• Red light: Absorbed by hemoglobin-rich tissues, supporting skin healing, reducing inflammation, and stimulating collagen.
• Near-infrared light: Penetrates deeper into muscles, ligaments, and joints, accelerating tissue regeneration.
• Combination protocols: Deliver both surface-level and deep-tissue benefits, making them ideal for treating a range of conditions.

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Supporting Pet Wellness with LTV

At Light Tree Ventures (LTV), we design ISO13485-certified and FDA-approved red and near-infrared therapy devices that are safe, effective, and easy to use for both veterinary clinics and at-home pet care.

If you’re exploring opportunities in the growing pet wellness market, you can request a quote today. With our private label options, you can design customized solutions for pet care brands. Or, with our white label solutions, you can start your project today with ready-to-market devices.

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References

• Animal Wellness Magazine. (2020). Light therapy for dogs and cats. Animal Wellness. Retrieved from https://animalwellnessmagazine.com/light-therapy-for-dogs-and-cats/
• Catster. (n.d.). Does your cat get depression in winter? Light therapy can help. Catster. Retrieved from https://www.catster.com
• Draper, W. E. (2012). Low-level laser therapy reduces time to ambulation in dogs after hemilaminectomy: A preliminary study. Veterinary Surgery, 41(2), 227–232.
• Healthline. (n.d.). Light therapy for depression. Healthline. Retrieved from https://www.healthline.com/health/depression/light-therapy
• Jann, H. W., McClure, S. R., Swaim, S. F., & Seales, S. S. (2012). Influence of low-level laser therapy on an equine metacarpal wound healing model. Veterinary Surgery, 41(6), 731–736.

Martin, B. B. Jr. (1987). Treatment of chronic back pain in horses: Stimulation of acupuncture points with a low-powered infrared laser. American Journal of Veterinary Research, 48(3), 523–527.

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