Why should you make sure the antenna of a hand-held transceiver is not close to your head when transmitting?

Hand-held transceivers place the radiating antenna very close to the operator's body, particularly the head and eyes. Keeping the antenna a safe distance away when transmitting significantly reduces your biological exposure to localized Radio Frequency (RF) tissue heating. The purpose of this practice is strictly for personal safety, not for improving signal propagation or preventing static buildup. While your body does interact with the signal, prioritizing your health and adhering to RF exposure limits is always the primary concern.