Concept of boson and fermion applied to atoms and more

[fluidistic]

Sometime I read that the helium atoms can be considered as boson, but I don't understand why. I know that its nucleous has a spin of 2 (integer) and that its 2 electrons gives the atom a total spin of 3, an integer.
But then why isn't hydrogen considered also as a boson? I think it's considered as a fermion, like the electron itself. Why? The total spin of the H atom isn't 1 (thus an integer)? It seems like only the nucleous is the only important thing in deciding whether an atom can be considered as a boson or fermion, why is it so? And if I have a molecule, how do I determine whether it's a boson or fermion?
In Wikipedia one can read

(they follow different quantum statistics: helium-4 atoms are bosons while helium-3 atoms are fermions).

and also

In particle physics, bosons ( /ˈboʊsɒn/[1]) are subatomic particles with integer spin (s = 0, 1, 2 etc.) that are governed by Bose-Einstein statistics.

where the enphasis is mine.
Can someone explain me when I can call a particle/atom/molecule a boson?

 

[Jimmy]

It depends on spin. Composite particles with an even number of fermions is a boson with integer total spin. Particles composed of an odd number of fermions is a fermion with half-integer total spin.

A proton by itself is a fermion ( 3 quarks). A hydrogen atom has four fermions- 3 quarks and an electron- and is considered a boson.

ETA:
A hydrogen molecule (H2) consists of two bosons and is a boson.

That wiki page should read particle.

 

[fluidistic]

It depends on spin. Composite particles with an even number of fermions is a boson with integer total spin. Particles composed of an odd number of fermions is a fermion with half-integer total spin.

A proton by itself is a fermion ( 3 quarks). A hydrogen atom has four fermions- 3 quarks and an electron- and is considered a boson.

ETA:
A hydrogen molecule (H2) consists of two bosons and is a boson.

That wiki page should read particle.

Ok thank you very, very much! So in a way I'm either a fermion or boson.

 

[chill_factor]

I'm also wondering about something related. So hydrogen molecules are bosons. However, when they interact, do they behave as bosons? Why does liquid hydrogen not display superfluidity as helium, both the 3 and 4 versions do?

Is there a size scale at which composite bosons no longer display the properties of bosons?

 

[DrDu]

I'm also wondering about something related. So hydrogen molecules are bosons. However, when they interact, do they behave as bosons? Why does liquid hydrogen not display superfluidity as helium, both the 3 and 4 versions do?

Is there a size scale at which composite bosons no longer display the properties of bosons?

Hydrogen freezes before it can get superfluid.