  We evaluate the light, strange and charm scalar content of the nucleon using
one lattice QCD ensemble generated with two degenerate light quarks with mass
fixed to their physical value. We use improved techniques to evaluate the
disconnected quark loops to sufficient accuracy to determine the strange and
charm nucleon $\sigma$-terms. in addition to the light quark content
$\sigma_{\pi N}$. We find $\sigma_{\pi N}$=$37.2(2.6)(^{4.7}_{2.9})$ MeV
$\sigma_{s}$=$41.1(8.2)(^{7.8}_{5.8})$ MeV and
$\sigma_c$=$79(21)(^{12}_{\phantom{1}8})$ MeV, where the first error is
statistical and the second is the systematic error due to the determination of
the lattice spacing, the assessment of finite volume and residual excited state
effects.
