Why do massive stars have surprisingly brief lifespans relative to their size?

Answer

Their immense gravitational squeeze forces fuel to burn at a vastly accelerated pace

Greater mass leads to higher core pressure and temperature, causing nuclear fusion to occur much faster, thus burning through the available hydrogen fuel prodigiously and quickly.

Why do massive stars have surprisingly brief lifespans relative to their size?

#Videos

How Does Mass Affect a Star's HR Diagram Evolution? - YouTube

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