Allergies are hypersensitive reactions of the immune system to certain substances, known as allergens, that are normally harmless to most people. These allergens can include pollen, dust mites, pet dander, certain foods, insect stings, and medications. When an individual with allergies comes into contact with an allergen, their immune system mistakenly identifies it as a threat and responds by releasing chemicals such as histamine. This can lead to various symptoms, which may range from mild to severe, including sneezing, itching, hives, nasal congestion, and in some cases, anaphylaxis, a life-threatening condition that requires immediate medical attention. Allergies can manifest in different forms, such as hay fever (allergic rhinitis), food allergies, skin allergies (such as eczema), and asthma. Management of allergies often involves avoiding known allergens, using medications to alleviate symptoms, and in some cases, undergoing immunotherapy to reduce sensitivity to triggers over time.
Japan's forests cover 67% of its terrain, with nearly 40% being man-made cedar and cypress forests facing neglect and ecological issues. The neglected forests exacerbate risks like landslides and threaten…