"But Christmas and the summer holidays are looming and it is after all that extra excitement that psychologists would expect to see more people turning up feeling a bit low or bored.
"After the New Year, when everyone is back at work and setting new goals, that is the time when things could get difficult for some."
To combat rugby cold turkey, Chatwin says people should focus on the positives.
"After the trauma of recent national tragedies, like the Christchurch earthquakes and the Pike River Mine disaster, it is almost as though the rugby was sent along as a bit of a pick-me-up," she says.
"It certainly changed the focus from a purely negative one to one of showcasing our country, talent and sport to the rest of the world - and on the international stage, we came off looking very good."
However, Chatwin warns Kiwi sex lives could be in for a flat patch.
"Given the amount of partying that has been going on, I think that some people's energy levels will be low so this could be a time of complete physical replenishment.
"But in terms of relationship-busting and sex taking a dive, I don't think this will necessarily be the case for everybody."
Chatwin also says people should avoid the trap England soccer fans fell into after winning the football World Cup on home turf in 1966 - and not dine on the success for decades.
"People should be wary of that happening, so it is time to take stock, reflect on what has been a brilliant event and move on," she says. "I would also hope that the All Blacks can win the World Cup again within the next 45 years."
Post-Cup disorder
Australia-based kiwi Paul Dagarin shares his mindset, post-RWC:
"Symptoms of post traumatic stress include re-experiencing the trauma in flashbacks. I've got those. Sometimes, in the course of my day-to-day duties - like making the kids' lunches - then whammo! 'Did Stephen Donald's kick really stay inside the right-hand post? Surely it drifted wide and they'll realise that soon?' The moisture is once again sucked from my mouth.
"Another symptom is avoiding anything associated with the traumatic event. I haven't watched a replay yet, and doubt I ever will. Partly that's because I don't think my heart could take a hammering like that again.
"Last on the checklist there's anger. Why would I feel anger after the bravest of All Black sides won the World Cup? Because I'm a New Zealander. Because we didn't cream them - that makes me angry and a wee bit guilty.
"All I want is for the entire rugby world to curl up into a ball and whimper: 'Please, no more ... You are too mighty'."
Instead of watching Rugby
- Go to the beach. High tide in Auckland is 10.43am and 1.51pm in Onehunga. Sea temperatures are a swimmable 16-17C.
- Kumeu Art in the Garden Festival. 10am-4pm. The Hobsonville Point Farmers' Market has local produce. 9am-1pm, the corner of Buckley Ave and Hastings Cres.
- Viva Waitakere festival fundraising to start a food forest. 1pm-6pm at Henderson Park.
- A family day for the coastguard's Lifejacket Awareness. 11am-1pm, Kawakawa Bay boat ramp.
