According to Tim Ferriss, it only takes 15 minutes of sun exposure to get a melanin reaction and anything more than this is harmful. He calls 15 minutes the minimum effective dose - all that is required for the intended effect.
According to Tim Ferriss, it only takes 15 minutes of sun exposure to get a melanin reaction and anything more than this is harmful. He calls 15 minutes the minimum effective dose - all that is required for the intended effect.
pretty interesting thought , gotta check that out since im listening his podcasts on the regular basis .
thanks