Avoid overexposing highlights which can become so bright, or "clipped" details. Areas that are so overexposed have no detail blink, They have nooutline in color.

Clipped Pixels
When a histogram shows pixels at the extreme ends of the range, in the 0 and 255 positions, it means details in those tones are lost or "clipped" in your image.

To avoid clipping usr exposure compensation. Increasing exposure shifts pixels to the highlight, or right end of the histogram. Decreasing exposure shifts them the other way.