Why people had a sunburn?

Exposure to ultraviolet (UV) radiation: The primary cause of sunburn is overexposure to UV radiation, which is present in sunlight and emitted by tanning beds and other artificial sources. UV radiation damages the skin's DNA, leading to sunburn and increasing the risk of skin cancer.

Fair skin: People with fair skin are more susceptible to sunburn because they have less melanin, the pigment that gives skin its color and provides some protection from UV radiation.

Outdoor activities: Engaging in outdoor activities, especially during peak sunlight hours (10 am to 4 pm), increases the risk of sunburn.

Lack of sunscreen or inadequate protection: Not applying sunscreen or using a sunscreen with a low SPF (Sun Protection Factor) can result in sunburn. Sunscreens with an SPF of 30 or higher are recommended for effective sun protection.

Skipping reapplication of sunscreen: Sunscreens need to be reapplied every two hours, or more frequently if swimming or sweating, to maintain adequate protection.

Reflection and indirect exposure: UV radiation can reflect off surfaces like sand, water, or snow, increasing the risk of sunburn even when not directly facing the sun.

Altitude: Sunburn risk is higher at higher altitudes due to reduced atmospheric filtering of UV radiation.

Medications and health conditions: Certain medications, such as oral contraceptives and some antibiotics, can increase sensitivity to UV radiation. Additionally, individuals with certain medical conditions, like lupus, may be more prone to sunburn.