How can I develop an allergy to cats?

How can I develop an allergy to cats? - briefly

Allergies to cats develop when the immune system overreacts to proteins found in cat dander, saliva, or urine, often triggered by repeated exposure. Genetic predisposition and environmental factors can also increase susceptibility.

How can I develop an allergy to cats? - in detail

Allergies to cats occur when the immune system mistakenly identifies proteins found in cat dander, saliva, or urine as harmful substances. These proteins, particularly Fel d 1, are the primary triggers. When exposed to these allergens, the immune system produces antibodies, leading to the release of histamine and other chemicals that cause allergy symptoms such as sneezing, itching, nasal congestion, and watery eyes. Developing a cat allergy is not a conscious choice but rather a result of genetic predisposition, environmental factors, and repeated exposure. Individuals with a family history of allergies or asthma are more likely to develop sensitivities. Prolonged or frequent exposure to cats can also increase the likelihood of sensitization, as the immune system may become overactive in response to the allergens. Lifestyle factors, such as living in highly sanitized environments, can contribute to the development of allergies by limiting early exposure to diverse allergens and microbes, which may otherwise help regulate the immune system. Additionally, changes in immune function due to stress, illness, or hormonal fluctuations can potentially trigger the onset of allergies. While it is not possible to intentionally develop a cat allergy, understanding the mechanisms behind allergic reactions can help manage or prevent symptoms through avoidance, medication, or immunotherapy.