Howie Mandel says colonoscopy led to dehydration that caused him to faint at an ...

Howie Mandel said that the aftereffects of a recent colonoscopy led to an incident in which he fainted at a Woodland Hills, California Starbucks on Wednesday.

The America's Got Talent personality, 65, had been out getting coffee with his wife and friends when he fainted while inside the location, and was eventually rushed via ambulance to a nearby hospital.

He opened up about the incident on Thursday on his podcast "Howie Mandel Does Stuff with his daughter Jackelyn Shultz, 37.

'I was dehydrated,' Mandel said. 'I had a colonoscopy a few days ago. You take a drink and you empty out.'

Mandel said he had 'consensual diarrhea the entire night,' as he 'took something that gives you consensual diarrhea and then ... was dehydrated' as a result.

Mandel said he rushed back to work too soon, and took in too much caffeine, factors that led to him fainting.

'The moment I woke up from the colonoscopy I worked,' he said. 'I did Logan Paul's podcast and then I did [another] podcast. And all I kind of lived on was coffee and caffeine, which also exacerbates dehydration, I was told … apparently when you do that you will pass out at Starbucks.'

Mandel said that in the incident, he 'got really dizzy and couldn't stand up,' but believes he remained conscious throughout.

'I got totally soaked with sweat,' Mandel said. 'For somebody who's dehydrated, I had a lot of sweat in me. And then next thing I know I was surrounded by the fire department and then they took me to the hospital, they did all these tests on my heart.' 

On Wednesday evening, Mandel gave an update on Twitter about his condition with fans and assured them that he was okay after being dehydrated and

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