Have you ever tried to bring back fond memories by eating or drinking something unique to that time and place?

It could be a Pina Colada that recalls an island holiday? Or a steaming bowl of pho just like the one you had in Vietnam? Perhaps eating a favourite dish reminds you of a lost loved one – like the sticky date pudding Nanna used to make?

If you have, you have tapped into food-evoked nostalgia.

As researchers, we are exploring how eating and drinking certain things from your past may be important for your mood and mental health.

Bittersweet longing

First named in 1688 by Swiss medical student, Johannes Hoffer, nostalgia is that bittersweet, sentimental longing for the past. It is experienced universally across different cultures and lifespans from childhood into older age.

But nostalgia does not just involve positive or happy memories – we can also experience nostalgia for sad and unhappy moments in our lives.

In the short and long term, nostalgia can positively impact our health by improving mood and wellbeing, fostering social connection and increasing quality of life. It can also trigger feelings of loneliness or meaninglessness.

We can use nostalgia to turn around a negative mood or enhance our sense of self, meaning and positivity.

Research suggests nostalgia alters activity in the brain regions associated with reward processing – the same areas involved when we seek and receive things we like. This could explain the positive feelings it can bring.

Nostalgia can also increase feelings of loneliness and sadness, particularly if the memories highlight dissatisfaction, grieving, loss, or wistful feelings for the past. This is likely due to activation of brain areas such as the amygdala, responsible for processing emotions and the prefrontal cortex that helps us integrate feelings and memories and regulate emotion.

How to get back there

There are several ways we can trigger or tap into nostalgia.

Conversations with family and friends who have shared experiences, unique objects like photos, and smells can transport us back to old times or places. So can a favourite song or old TV show, reunions with former classmates, even social media posts and anniversaries.

What we eat and drink can trigger food-evoked nostalgia. For instance, when we think of something as “comfort food”, there are likely elements of nostalgia at play.

Foods you found comforting as a child can evoke memories of being cared for and nurtured by loved ones. The form of these foods and the stories we tell about them may have been handed down through generations.

Food-evoked nostalgia can be very powerful because it engages multiple senses: taste, smell, texture, sight and sound. The sense of smell is closely linked to the limbic system in the brain responsible for emotion and memory making food-related memories particularly vivid and emotionally charged.

But, food-evoked nostalgia can also give rise to negative memories, such as of being forced to eat a certain vegetable you disliked as a child, or a food eaten during a sad moment like a loved ones funeral. Understanding why these foods evoke negative memories could help us process and overcome some of our adult food aversions. Encountering these foods in a positive light may help us reframe the memory associated with them.

What people told us about food and nostalgia

Recently we interviewed eight Australians and asked them about their experiences with food-evoked nostalgia and the influence on their mood. We wanted to find out whether they experienced food-evoked nostalgia and if so, what foods triggered pleasant and unpleasant memories and feelings for them.

They reported they could use foods that were linked to times in their past to manipulate and influence their mood. Common foods they described as particularly nostalgia triggering were homemade meals, foods from school camp, cultural and ethnic foods, childhood favourites, comfort foods, special treats and snacks they were allowed as children, and holiday or celebration foods. One participant commented:

I guess part of this nostalgia is maybe […] The healing qualities that food has in mental wellbeing. I think food heals for us.

Another explained

I feel really happy, and I guess fortunate to have these kinds of foods that I can turn to, and they have these memories, and I love the feeling of nostalgia and reminiscing and things that remind me of good times.

Understanding food-evoked nostalgia is valuable because it provides us with an insight into how our sensory experiences and emotions intertwine with our memories and identity. While we know a lot about how food triggers nostalgic memories, there is still much to learn about the specific brain areas involved and the differences in food-evoked nostalgia in different cultures.

In the future we may be able to use the science behind food-evoked nostalgia to help people experiencing dementia to tap into lost memories or in psychological therapy to help people reframe negative experiences.

So, if you are ever feeling a little down and want to improve your mood, consider turning to one of your favourite comfort foods that remind you of home, your loved ones or a holiday long ago. Transporting yourself back to those times could help turn things around.

Megan Lee, Senior Teaching Fellow, Psychology, Bond University; Doug Angus, Assistant Professor of Psychology, Bond University, and Kate Simpson, Sessional academic, Bond University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

For many Australians the emergency department (ED) is the physical and emblematic front door to accessing urgent health-care services.

But health-care services are evolving rapidly to meet the population’s changing needs. In recent years, we’ve seen growing use of telephone, video, and online health services, including the national healthdirect helpline, 13YARN (a crisis support service for First Nations people), state-funded lines like 13 HEALTH, and bulk-billed telehealth services, which have helped millions of Australians to access health care on demand and from home.

The ED is similarly expanding into new telehealth models to improve access to emergency medical care. Virtual EDs allow people to access the expertise of a hospital ED through their phone, computer or tablet.

All Australian states and the Northern Territory have some form of virtual ED at least in development, although not all of these services are available to the general public at this stage.

So what is a virtual ED, and when is it appropriate to consider using one?

How does a virtual ED work?

A virtual ED is set up to mirror the way you would enter the physical ED front door. First you provide some basic information to administration staff, then you are triaged by a nurse (this means they categorise the level of urgency of your case), then you see the ED doctor. Generally, this all takes place in a single video call.

In some instances, virtual ED clinicians may consult with other specialists such as neurologists, cardiologists or trauma experts to make clinical decisions.

A virtual ED is not suitable for managing medical emergencies which would require immediate resuscitation, or potentially serious chest pains, difficulty breathing or severe injuries.

A virtual ED is best suited to conditions that require immediate attention but are not life-threatening. These could include wounds, sprains, respiratory illnesses, allergic reactions, rashes, bites, pain, infections, minor burns, children with fevers, gastroenteritis, vertigo, high blood pressure, and many more.

People with these sorts of conditions and concerns may not be able to get in to see a GP straight away and may feel they need emergency advice, care or treatment.

When attending the ED, they can be subject to long wait times and delayed specialist attention because more serious cases are naturally prioritised. Attending a virtual ED may mean they’re seen by a doctor more quickly, and can begin any relevant treatment sooner.

From the perspective of the health-care system, virtual EDs are about redirecting unnecessary presentations away from physical EDs, helping them be ready to respond to emergencies. The virtual ED will not hesitate in directing callers to come into the physical ED if staff believe it is an emergency.

The doctor in the virtual ED may also direct the patient to a GP or other health professional, for example if their condition can’t be assessed visually, or if they need physical treatment.

The results so far

Virtual EDs have developed significantly over the past three years, predominantly driven by the COVID pandemic. We are now starting to slowly see assessments of these services.

A recent evaluation my colleagues and I did of Queensland’s Metro North Virtual ED found roughly 30% of calls were directed to the physical ED. This suggests 70% of the time, cases could be managed effectively by the virtual ED.

Preliminary data from a Victorian virtual ED indicates it curbed a similar rate of avoidable ED presentations – 72% of patients were successfully managed by the virtual ED alone. A study on the cost-effectiveness of another Victorian virtual ED suggested it has the potential to generate savings in health-care costs if it prevents physical ED visits.

Only 1.2% of people assessed in Queensland’s Metro North Virtual ED required unexpected hospital admission within 48 hours of being “discharged” from the virtual ED. None of these cases were life-threatening. This indicates the virtual ED is very safe.

The service experienced an average growth rate of 65% each month over a two-year evaluation period, highlighting increasing demand and confidence in the service. Surveys suggested clinicians also view the virtual ED positively.

What now?

We need further research into patient outcomes and satisfaction, as well as the demographics of those using virtual EDs, and how these measures compare to the physical ED across different triage categories.

There are also challenges associated with virtual EDs, including around technology (connection and skills among patients and health professionals), training (for health professionals) and the importance of maintaining security and privacy.

Nonetheless, these services have the potential to reduce congestion in physical EDs, and offer greater convenience for patients.

Eligibility differs between different programs, so if you want to use a virtual ED, you may need to check you are eligible in your jurisdiction. Most virtual EDs can be accessed online, and some have direct phone numbers.

Jaimon Kelly, Senior Research Fellow in Telehealth delivered health services, The University of Queensland

This article is republished from The Conversation under a Creative Commons license. Read the original article.