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If you've ever been in a room with another person for a prolonged period of time, you will almost certainly have held in a fart. However, according to a medical expert, we need to stop doing it right now.
Warning his followers of the dangers, the GP says: "Don't hold in your farts. The average person farts 20 times a day.
"Everybody farts, yes, I mean everybody. Gas forms naturally in your stomach as a waste product of digestion. It gets mixed with air that you swallow when you eat and drink.
"If you hold in a fart, you can cause yourself heartburn, bloating, and pain.
"The gas could come out as a smelly burp or make your breath stink. Imagine doing a burp that smells like a fart."
So if anyone loses the plot because you've dropped one, just tell them how it could be so much worse if you hadn't.
Another TikTok expert to share his wisdom over recent months is Dr Karan Raj.
And recently, he explained why we should all be brushing our teeth before breakfast.
Dr Raj - who has amassed 2.7 million followers on TikTok - dispensed the advice in a video, which has since been viewed hundreds of thousands of times.
Many people brush after eating because they don't like their brekkie to taste of toothpaste and they figure there's no point in cleaning their teeth just before eating.
This is the wrong way to go about things though, according to the TikTok doc.
He explained: "You've got to brush your teeth before breakfast, not after. Brushing before breakfast coats your enamel with a protective barrier against acid in your food - all that orange juice you're guzzling down.
"It also helps you jump-start saliva production which helps you break down food and naturally kills harmful bacteria in your mouth.
"Brushing your teeth after breakfast can actually cover your teeth in the remnants of acidic food, and this can actually weaken your enamel."
In yet another of his many posts, Dr Raj also explained why you should not, under any circumstances, make your bed as soon as you wake up.
He explained in a previous video: "Making your bed in the morning traps dust mites that have accumulated over night. These microscopic predators, which are less than a millimetre long, feed on the scales of human skin and thrive in moist environments.
"When we sleep at night, our bodies become warm and sweaty, making them prime targets for these mites to feed on.
"They will leave behind excretions which can give us asthma or allergy-like symptoms.
"So making your bed in the morning traps all this moisture and provides a home for 1.5 million of these bad boys."
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