effects of day trading on the market behaviour

[JS 10]

I have yet to find an article to discuss the topic and if you know one or have your opinion, please go ahead and post it. 

I am wondering with increased day trading activities in the market, what does it do to the market? Making it more volatile?  Since day trading does not hold positions overnight and long term, the overall market is more volatile intra day but everything is back to equilibrium at the end of the day at the market close. I can also comprehend the part of enhanced liquidity since more people are entering and exiting. 

Edited February 12, 2021 by JS