Examples disclosed herein control radiation exposure for a wireless computing device. In one example, the wireless computing device monitors for instances of upload transmissions from a wireless communications module of the wireless computing device, performs a running average of the instances of upload transmissions over a period of time, and determines whether the running average exceeds a threshold value. If the running average exceeds the threshold value, the wireless computing device adjusts upload transmissions from the wireless communications module to control the radiation exposure for the wireless computing device.