Do Cats Need Sunbathing? A Vet Explains What Happens If They Don't Get Enough Sun

You’ve probably seen cats relaxing in a sunny spot, haven’t you?

Humans also feel good with a moderate amount of sun exposure. It’s the same for cats; sunbathing has various benefits beyond just warming their bodies. This article explains cat sunbathing.

Benefits of Sunbathing for Cats

Sunbathing offers various benefits besides warming the body.

Serotonin Secretion

Serotonin is a neurotransmitter secreted in the brain that is involved in mental stability and is also known as the "happiness hormone." It is also deeply connected to sleep, said to promote deeper sleep. An increase in serotonin secretion through sunbathing is thought to help reduce stress in cats.

Maintains Skin Health

The UV rays in sunlight have a sterilizing effect on microorganisms. Therefore, moderate sun exposure makes it harder for microorganisms to attach to the skin. It also helps repel fleas and ticks.

Additionally, sunbathing improves blood circulation in the skin, which is expected to help maintain skin health.

Vitamin D Absorption

In humans, exposure to sunlight leads to vitamin D synthesis. Vitamin D is a vitamin that maintains constant calcium levels in the body and is also involved in immune regulation. In cats, vitamin D is not synthesized through sun exposure, and vitamin D obtained through diet is crucial. However, it is believed that sun exposure may promote the absorption of vitamin D.

Cat Diseases Caused by Sunbathing

If cats are exposed to too much sun, they can develop sun-induced illnesses. The diseases that can occur from sunbathing are as follows:

• Dermatitis (Photosensitivity)
• Squamous Cell Carcinoma
• Cataracts
• Keratitis

Dermatitis and squamous cell carcinoma are more common in white cats, cats with light pigmentation, and elderly cats, causing lesions such as sores on the ears and face. Additionally, even with eyelids closed, light can enter the eyes, making them susceptible to eye diseases.

Cats who frequently sunbathe should have regular health check-ups at the vet. If you notice anything unusual, such as dermatitis on the face or ears that doesn't heal, or a white appearance in the eyes, consult a vet immediately.

What Happens if Cats Don't Get Enough Sun?

Depending on the living environment, some cats might not get much sun exposure. Is there any problem if they don't get enough sunlight? Lack of sunlight is thought to lead to a weakened immune system, difficulty regulating body temperature, and emotional instability.

Weakened Immune System

While cats do not synthesize vitamin D through sunbathing, it is believed to be involved in vitamin D absorption. Vitamin D not only regulates calcium but also helps regulate the immune system. Lack of sunlight is thought to lead to a weakened immune system.

Temperature Regulation

Cats efficiently regulate their body heat through sunbathing. Cats that do not sunbathe may find it difficult to regulate their body temperature efficiently, increasing the risk of heatstroke or hypothermia.

Emotional Instability

When exposed to sunlight, serotonin, which is involved in emotional stability, is secreted in the brain. Cats with stable emotions tend to be less prone to behavioral abnormalities such as destruction and aggression, or abnormal appetites. A lack of sunlight can lead to decreased serotonin, potentially causing behavioral or appetite abnormalities.

In humans, it is known that areas with less daylight hours or during winter often see an increase in depressive symptoms due to serotonin deficiency (seasonal depression).

Recommended Sunbathing Methods for Cats

Sunbathing doesn't require being in direct sunlight constantly. UV rays can pass through windows, and the warmth is effectively transmitted. Forcing a cat out onto a balcony just to sunbathe can lead to accidents like jumping off. Also, if there are stray cats nearby, your cat might react to them and escape, or contract airborne infectious diseases. It is recommended that sunbathing be done indoors.

Cats often sunbathe naturally, but if they don't get much sun, allow them about 15 to 30 minutes of sun exposure. It's also important to avoid the strongest sun between 10 AM and 3 PM. Conversely, if your cat is in the sun for too long, provide some shade. For cats with sensitive skin or light pigmentation, sunlight can exacerbate conditions, so partially block the sun with curtains.

During sunbathing, cats often feel comfortable and fall asleep, which can lead to their body temperature rising without you noticing. Place drinking water close to your cat to ensure they can stay hydrated.

Summary

Cats are animals that love sunbathing. Sunbathing offers various benefits for cats, such as emotional stability, enhanced immunity, and body temperature regulation. While there are benefits, there are also downsides, including dermatitis, skin cancer, and cataracts. Furthermore, prolonged sunbathing in an inappropriate room temperature can actually be harmful. It's important to provide appropriate sunbathing to keep your cat healthy.