Cook's wife convinced him to stay as captain
Cook and his team thrashed India to win the five-match series 3-1 on Sunday. England defeated India by an innings and 244 runs in the final Test match of the series.
The England skipper said he he considered his position after losing to Sri Lanka at Headingley and then facing defeat in the hands of MS Dhoni's India at Lords.
Cook and his team, however, bounced back in the series and defeated India to clinch it.
Without my wife, I don't think I'd be standing here as captain," an emotional Cook told BBC Test Match Special.
"You don't often say things like that - I don't know why I just have - but it's the way I feel," he said.
"You can bare your soul quite often to Alice and she's very good at getting me back on the straight and narrow," the captain said.
"That fourth night at Headingley was a tough place because we had let a winning position slip. Lord's was also very tough - the way we lost there in conditions that were suited to us," Cook said.
Speaking on his comeback, the captain said: "But I'm quite stubborn - I believe in my ability. I stuck in there through the tough times. Sport tests your character and to bounce back as a team is testament to our character."
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