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what does pre workout do

What does pre workout do?

Everyone wants to get the most out of the time they spend exercising, and "preworkout" supplements claim to help you do exactly that. It might be tempting to try one of these supplements before hitting the gym or heading out for a run, in hopes of increasing your energy levels, muscle power or endurance during your workout.

Preworkout supplements often contain a mystery blend of ingredients ranging from caffeine to guarana to creatine. But do these supplements work, and are they safe to take?

It turns out that these supplements may just change the way you feel while you're working out. Many of the ingredients in preworkout supplements are intended to give athletes the perception that their workout is supercharged, said Jordan Moon, an exercise physiologist and sports nutritionist at the United States Sports Academy and Concordia University Chicago, and chief science officer at the fitness tracking website

"You've got ingredients that are going to increase blood flow, increase heart rate, increase focus, increase blood flow to the skin and give you a little tingle," Moon told Live Science.

But those physical effects don't make people bigger, stronger or faster, Moon said.

And although some of these supplements' ingredients — such as caffeine, creatine and beta-alanine — have been shown to modestly enhance performance in extreme athletes and bodybuilders, they only give people an edge if they are pushing themselves to the limit, Moon said.

So, now you know what pre workout does for you before your workout. But now you need a brand new gym set so check out our collection now.

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Tiff Gregers - December 20, 2021

Thank you for talking about how a pre-workout supplement can help you feel better while you work out. I want to get in better shape this year. I will find a great pre-workout supplement company in my area to help.

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