How does gravity affect the life cycle of stars? How does it start and end the life of a massive star?

Question

Hailey Alvarez · Accepted Answer

The more massive the star #-># More Gravity #-># Less Lifespan

The more massive a star is, it would have a large gravitational force.

Which as shown speeds up the nuclear fusion.

Example - Imagine you holing a water bottle upside down to let the water fall off. Your friend but presses the bottle (same kind) for the same purpose. Which one's bottle will empty first?

Note:
This would be a useful link.

How does it start and end the life of stars?
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Levi Anderson · Answer

undefined The life cycle of stars is largely dependent on gravity. In massive stars, gravity drives the fusion of hydrogen into helium in the star's core, releasing energy and initiating nuclear fusion. As the star ages, gravity keeps compressing the core, raising its temperature and pressure and allowing heavier elements to fuse. Eventually, in massive stars, gravity surpasses the outward pressure from nuclear fusion, causing the core to collapse. This collapse then sets off a supernova explosion, in which the outer layers of the star are ejected into space, producing either a neutron star or a black hole, depending on the star's initial mass.