Dr Hilary gave some unusual advice about sleeping in a bra - after Lorraine Kelly admitted she never takes her off.
Lorraine, 59, told Coleen Nolan that she didn't realise not removing her bra at night was weird but viewers were in disbelief.
Lorraine reacted to the sensation over her admission on today's show and asked Dr Hilary if she was "strange".
She said: "Yesterday on the show I made a very innocent remark to Coleen Nolan. We were talking about bras. 24 hours on and people are still talking about this. It was just a throwaway remark."
The presenter joined Dr Hilary and fashion expert Mark Heyes to discuss the topical issue - reports Mirror Online.
Lorraine said: "Hilary I keep my bra on, but obviously if I’ve slept in it overnight I change it every day. Of course I do. "Is there anything wrong with sleeping in your bra? Am I strange?"
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The show's resident medic revealed there is actually no benefit or disadvantage.
Dr Hilary said: "There is nothing to suggest there is any medical benefit or disadvantage.
"I can imagine why some women, for comfort, would keep a bra on at night but there is no other reason.
"When you are standing, there is a gravitational pull and things can go south but when you are in bed, you are horizontal and nothing should be happening."
But Lorraine wasn’t convinced , adding: "I just don’t like being all loose."
Fashion expert Mark Heyes then weighed in by confessing he doesn't wear anything in bed.
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Dr Hilary agreed: "Mark’s right, I don’t understand people who get dressed to go to bed...pyjamas...what is that all about?"
Giggling Lorraine said: "Boys are funny like that. Boys like being naked. I like to have my nightie on."
Later, she added: "[My boobs] are not bad for a lady of my age. I think wearing a bra has kept them perky."
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Lorraine viewers took to Twitter to give their opinions on the bra controversy.
One viewer said: "#Lorraine I honestly don't know how you can wear a bra in bed, I can't wait to take mine off at bedtime"
"O no I can't sleep with my bra it's uncomfortable #lorraine," added another.
*Lorraine airs weekdays on ITV at 8.30am
