Miller (1954) established that ABH includes any hurt or injury that interferes with health or comfort. R(T) v DPP (2003) found that loss of consciousness, even momentarily, constitutes ABH. Psychiatric injuries can be ABH but not mere emotions; they require an identifiable clinical condition like Burstow (1997) where stalking caused severe depression. The mens rea for common assault is enough for ABH; the defendant must intend or recklessly subject the victim to unlawful force as in Roberts (1971) and Savage (1991), even if they did not intend or foresee actual bodily harm.