Find modifies the Access Time

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http://unix.stackexchange.com – I have to find those files which have been modified before one day. There are lots of files which are modified before one day. I am doing find ./ -type f -mtime -1. But, I observed that my disk util went to 100%. It was probably because of the access time modification for each file. Is there any way to find files without modification of the access time ? Please help. (HowTos)