Why your body has weight: the invisible friction of the universe

Science · Published 24 October 2026 Swipe more like this →

In short: If you stripped away the Higgs field, every fundamental particle in your body would instantly become massless. You wouldn't just float; you would dissolve into light-speed radiation. Understanding why matter stays put requires looking at how the vacuum itself exerts a constant, heavy influence on everything we see.

To understand mass, we must first distinguish between binding energy and intrinsic mass. While 99% of an atom's mass comes from the energy holding its nucleus together, only about 1% is derived from the subatomic particles themselves—the electrons and quarks. These fundamental components are not inherently heavy; they gain their 'weight' through a specific interaction with the Higgs field, a unique phenomenon in the Standard Model of particle physics. Most fields, such as the electromagnetic field, have no mass even in their lowest energy state. If you placed an electron field in an empty box without the Higgs field present, that box would weigh zero. In this hypothetical universe, electrons would behave like photons, moving at the speed of light because they lack any resistance to motion. However, the Higgs field is different: it possesses a 'vacuum expectation value' of 246 GeV.

This means even in completely empty space, the Higgs field has an inherent energy that exists regardless of whether particles are present. When a particle like an electron moves through this field, it constantly interacts with that vacuum energy. Because energy and mass are equivalent, this interaction imparts energy to the particle, which manifests as rest mass. You can visualize this as a form of universal friction: when you try to move an electron, it receives a 'push-back' from the Higgs field. This resistance to acceleration is exactly what we perceive as inertial mass. Without this constant, invisible interaction with the vacuum's baseline energy, the building blocks of matter would have no substance at all.

The distinction between real particles and quantum fluctuations is also key. Fields are always active with virtual particles—fleeting excitations that borrow and return energy so quickly they cannot be measured. Real particles only emerge when enough energy is transferred to a field to create a stable excitation, such as an electron appearing in units of 0.511 MeV. The Higgs field ensures that these stable excitations possess the mass required to form the tangible world.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?

Related

• Why do elementary particles have mass when quantum theory says they should be weightless?
• The invisible field that gives our entire universe its weight
• The hidden energy that makes up 99% of your body's mass
• The Higgs field might be balancing our universe on a razor's edge
• Why the universe is heavy: how symmetry breaking creates matter
• Could mysterious muon readings force a total rewrite of modern physics?
• The universe should be empty, yet it is full of matter
• The universe began as a single force before splitting into four
• Physicists have finally observed an exotic particle containing two heavy charm quarks
• Why did matter survive the Big Bang's total annihilation?
• How physicists finally caught the elusive tau neutrino to complete the Standard Model
• Why the universe has substance instead of just moving at light speed

More in Particle physics · More in Science · Latest · A–Z · All topics