England's upturn in form under Eddie Jones is down to the increased intensity in training, according to hooker Luke Cowan-Dickie.
The Exeter front-row, 22, came on in England's last two games in their Grand Slam-winning Six Nations campaign.
It came six months after England were knocked out of the World Cup in the groups stages under Stuart Lancaster.
"The training's definitely changed, it's the intensity of the training," Cowan-Dickie told BBC Sport.
"It seems to feel a bit shorter, but you're always doing stuff, there's not much chit chat."
Cowan-Dickie has won three caps for his country, all as a replacement, with England captain Dylan Hartley ahead of him in the pecking order.
His chance in the Six Nations came after injury to Saracens hooker Jamie George.
"I'm still learning my trade, so to have a guy like Dylan in the squad, I keep chatting to him about certain things, especially hooking the ball now in the scrum, that's the main factor," he said.
"I'm still young, hopefully I've still got a fair few years left so I'm going to learn as much as I can off people like him and Jamie George and hopefully it'll help my game get better and then maybe I'll be able to help them."