Safety of 9.3-GHz microwave radiant heating for possible caloric supplement and medical treatment.

The hematological and blood-chemistry effects of chronic microwave radiation on unrestrained rhesus monkeys trained to expose their face and eyes to 9.3GHz microwave radiation at an average incident power density of 150 or 300mW/cm2 are reported. Only inconsistent transient effects were found. The lack of significant hematological effects, together with the lack of ocular or behavioral changes reported earlier, support the idea that microwave frequencies in the range of 10GHz may be safe to use for caloric supplement of hypothermic individuals and medical patients.