Lower frequency RF fields have more energy than higher frequency fields
Lower frequency RF fields do not penetrate the human body
Higher frequency RF fields are transient in nature
The human body absorbs more RF energy at some frequencies than at others✓Bonne réponse
Explication
How much RF energy the body absorbs depends on frequency, because the body and its limbs are resonant at some frequencies and absorb energy far more efficiently there than at others. The limits are set tighter where absorption is greatest, roughly the VHF range.