What Actually Happens Inside a Sunburn (You’ve Never Seen This)🔥

Added: 2026-05-23

[00:00:00]When ultraviolet rays from the sun penetrate your skin, they pass through the outer layer and reach the living cells beneath. Once inside, the radiation damages the DNA in these cells and triggers cellular stress responses.

[00:00:11]Your skin recognizes this damage and activates an inflammatory response.

[00:00:15]Blood vessels in the area dilate, increasing blood flow and causing the skin to turn red and feel hot. Over the next few hours and days, damaged cells [music] undergo apoptosis, programmed cell death. As the body removes these cells, the [music] outer layer begins to peel away while new skin cells form underneath.