Lazarus stars (commonly known as Blue Stragglers) are stars that appear younger than their surroundings. In the Physical Sea model, this phenomenon is not just due to mass transfer or stellar mergers, but due to their interaction with high-density () or high-vorticity () pockets of the medium.
As a star moves through a rotating vortex of the Sea, it accretes kinetic energy from the medium through viscous friction.
Where is the viscosity of the Physical Sea. This external energy injection can temporarily sustain a star's brightness, making it appear younger and more massive than its evolutionary age.
The rate of nuclear aging is a function of the local density of the Physical Sea.
In high-density pockets (), the "impedance" of the medium slows down all physical processes, including nuclear fusion. This dilates the star's aging process relative to the surrounding thinner space.