Sally Roberts has exclusively told ITV Daybreak that she is concerned that radiotherapy treatment could be damaging to her son Neon, by affecting his DNA.
She said there are "so many" other treatments that her son could be having instead.
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Cloud and rain will wriggle it's way into the Channel Islands, Cornwall and the Isles of Scilly later and here it'll feel muggy.
ITV News political correspondent examines the reaction to Labour's Pledge Stone.
The high-profile couple blamed their schedules and not being able to spend time together on their mutual decision to end their relationship.