Scientist Dr Karl reveals why people become more attractive when you’re drunk

Drinking alcohol or being slightly drunk can make the opposite sex more attractive, one of Australia’s leading science commentators has revealed.

Dr Karl Kruszelnicki, who has degrees in medicine and biomedical engineering, recently joined TikTok to answer common scientific questions.

His latest query is why people suddenly become more attractive when you’re drunk.

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Drinking alcohol or being slightly drunk can make the opposite sex more attractive, one of Australia’s leading science commentators has revealed (Dr Karl pictured)

Dr Karl Kruszelnicki (pictured), who has degrees in medicine and biomedical engineering, recently joined TikTok to answer common scientific questions

‘Alcohol is absolutely amazing,’ Dr Karl said in the TikTok clip. 

‘It can strip oil stains off a garage floor, but it can also change your human perception of reality.’

The scientist highlighted a study done in 2003 on heterosexual university students and whether alcohol affected their perceptions of reality and their opinions on the attractiveness of other people.

The scientist highlighted a study done in 2003 on heterosexual university students and whether alcohol affected their perceptions of reality and their opinions on the attractiveness of other people (pictured)

‘For both men and women, when they were slightly inebriated or “Molly the monk”, a bit of alcohol made a wrist watch look a bit more attractive,’ Dr Karl said.

‘But when it came to rating the attractiveness of other people, women found men a bit more attractive, but men found women a whole lot more attractive.’

He said they called this an increase in the ‘Facial Attractiveness Index’, or what we might call ‘beer goggles’. 

Dr Karl (pictured) said while scientists call this an increase in the ‘Facial Attractiveness Index’, we call it ‘beer goggles’

More than 25,000 people who saw the clip said it was ‘interesting’ and they ‘never knew it’.

‘At least 20 per cent of the population was conceived because of beer goggles,’ one commenter wrote.

‘I love this, it’s so true,’ another added.

Last month, Dr Karl joined TikTok in order to answer an array of science-related questions including why your urine goes clear when you’re drinking (Dr Karl pictured)

Last month, Dr Karl joined TikTok in order to answer an array of science-related questions.

Recent queries include why does urine go clear when you’re drinking and does mixing diet drinks with alcohol make you more drunk. 

Why does urine turn clear when you drink alcohol?

Recently, Dr Karl answered why your urine turns clear when you drink alcohol.

‘Clear urine when drinking beer goes like this,’ Dr Karl said.

‘Drink a six pack: urinate a 10 pack. 200mL of beer in, means 320mL of urine out.’

The reason why this happens is because the alcohol ‘acts on the anterior pituitary and interferes with your anti-diuretic hormone’.

‘Therefore, you start making huge amounts of urine and your pee is very light-coloured because it’s diluted,’ Dr Karl said.

Does mixing diet drinks with alcohol make you more drunk?

Finally, Dr Karl revealed that mixing diet drinks with alcohol can make you feel more drunk due to the digestive process.

His theory is that having alcohol with either diet or regular fizzy has the same amount of liquid alcohol but because our stomachs digest two to three calories a minute, the diet mixed drink would process faster.

‘Your stomach expels the liquid at a fixed rate of around two-to-three calories a minute,’ Dr Karl said.

‘So a rum and diet coke will get out of your stomach, into the next section, where it gets absorbed faster, and the blood alcohol level will go up higher and it will do it sooner than a rum and regular coke.’

The scientist recommends that you never drink on an empty stomach, and if possible choose full-fat mixer to prevent yourself from feeling too drunk.