Do Deer Get Used to Human Scent?

As far as deer accepting human scent, I see that a lot. They will accept it where they expect it. I have had bucks walk right up to a trail camera that I checked daily every night, but the same buck crosses my scent trail near his bedding area and absolutly freaks.

How long does human scent linger for deer?

In 6 hours your scent can dissipate to an unalarming amount. Also keep in mind ground scent on a windy day ground doesn't go up to the bucks nose it is off to the side. Same way with thermals, rising thermals bring the ground scent up to the bucks nose. If you are walking through tall grass forget it, your busted.

Are deer scared of human scent?

Young deer usually don't respond to presence of humans like mature bucks and Alpha does, which react instantly when human scent is detected. Mature deer will also change travel corridors and other behaviors when those areas have human scent.