From the 1990s the torus became a central image in popular sacred geometry and New Age cosmology. The claim in its strong form is that the torus is the fundamental shape of energy at every scale (atom, cell, human being, planet, galaxy, universe), all the same self-sustaining circulation through a central axis.
The parts of that which are true are set out above. What is added is not.
Atoms are not tori. Electrons occupy orbitals whose shapes follow from quantum mechanics, and none of the standard orbital shapes is a torus. Galaxies are discs with a central bulge and a surrounding halo; the material orbits, but it does not circulate back through a hole. The universe may or may not have non-trivial topology, a toroidal universe is a genuine possibility that cosmologists test against microwave background data, and the data so far do not support it while not entirely excluding it, but that is a technical claim about global shape, not about energy flowing through an opening.
The human torus field is the most repeated version, and here the base fact is real. The heart generates a magnetic field detectable outside the body, in the range of tens to hundreds of picotesla at the chest surface, and measuring it is a working clinical technique called magnetocardiography, used among other things to localise ischaemic regions of the heart muscle.
The extensions are not established. The claim that this field extends around three feet in all directions and carries emotional information between people originates with the HeartMath Institute, is published largely outside mainstream peer review, and is not accepted in cardiology or biophysics. The heart's field is one bioelectric signal among many, is comparable in magnitude to skeletal muscle activity during movement, and falls off steeply with distance.
The torus is one of the most important shapes in mathematics and one of the commonest in fluid and electromagnetic behaviour. It does not need the additions.