Neutrinos travels through our bodies: do they contribute to the gravitational attractive force?

Question

Are neutrinos traveling through our bodies what really make us attracted to the Earth?

Answer 1

The neutrinos traveling through your body are not in anyway attached to you: if they did stick to you in some sense they wouldn't go through so freely.

So, while the neutrinos are subject to gravity, they don't contribute to your weight, even by the incredibly tiny amount of mass that they constitute.

Answer 2

Are neutrinos traveling through our bodies

Unless we are near a reactor neutrinos traveling through our bodies come either from the earth where radioactive materials decay, or from the space around us where stars, including the sun emit them in the interactions that keep them hot and shining.There will also exist primordial neutrinos which like the cosmic background radiation permeate everything.

Neutrinos are weakly interacting and pass through matter very fast without interacting as their mass is very small and their velocity close to the velocity of light.

what really make us attracted to the earth?

What attracts us to the earth is the gravitational force . In the elementary particle framework the carriers of force are specific for each interaction, gluons for the nuclear strong force, Z and Ws for the weak force, photons for the electromagnetic and gravitons , are hypothesized to be the carriers of the gravitational force.

So no, neutrinos have nothing to do with the apples falling. The gravitons are the culprits.

Answer 3

I suppose the question refers to the scenario that there is an isotropic radiation of neutrinos in universe and that the part of this radiation that passes through earth before it penetrate our bodies is somewhat weaker than the corresponding radiation from above and that this difference give rise to a presumable tiny force downward, that is a (tiny) part of the "real gravity" but not of the theoretical gravity.