Perhaps? Something like sunscreen? 2.4 GHz is the frequency at which water resonates so our bodies are already giant optimal absorbers of wifi energey, I wonder if anything would help.
> 2.4 GHz is the frequency at which water resonates
Answers by people who understand this better than me here [1], but 2.4GHz is not "the" resonant frequency, water has a number of frequencies it interacts with radiation. And water isn't going to behave like a tuning fork anyway, it would be more analogous to sand. Microwaves interact with water by dipole interaction, and they just unload heat.
That's why wifi isn't going to do much to your body, any cooking of you being done by radiation is trivial compared to your own body heat.
