A British teenager who disappeared on holiday in Thailand has been discovered in an eastern European prison on suspicion of drug offences, prompting serious concern for her family.

Peter Sullivan, finally exonerated by new DNA evidence after decades behind bars for a murder he did not commit, has ended what many describe as the longest justice debacle of modern times.

Evidence suggests weight-loss injections may cut the chance of developing cancer by nearly half, offering potential preventative benefits for people of various body types.