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Seasonal affective disorder – or SAD – isn’t just ‘winter blues’ | UK News

Seasonal affective disorder – or SAD – is often dismissed as “winter blues” or “depression-lite” – actually it is a “major depressive disorder”.

It is a nuanced and misunderstood mood disorder, Dr Laurence Wainwright, a psychiatry academic at Oxford University, tells Sky News.

But because it comes and goes, it’s not taken seriously – even though it can be “harrowing” for sufferers.

The acronym doesn’t always help. It’s one of the best shorthands in psychiatry, Dr Wainwright says – but it’s also easy to pass off as “just” sadness.

In fact, it is a “recurrent depressive phase” that comes on at certain times of the year – most commonly winter, although in summer for some people – and is in “remission” for the rest of the year, Dr Wainwright says.

“In the past, it has been categorised as being its own ‘thing’ and we still use the terminology seasonal affective disorder, but this is a subtype of major depression.”

Between 0.5% and 2.4% of the population suffer from it – anywhere between 268,000 and 1.6 million people in the UK.

The most common explanation for SAD is the lack of sunlight in winter.

Not getting enough bright light in our eyes can cause a “misfiring of the circadian rhythm, the body’s internal clock”, Dr Wainwright says.

An overproduction of melatonin, the hormone that regulates sleep, can also make people feel tired and less energetic.

Other factors are at play, but aren’t fully understood. Serotonin, a neurotransmitter and hormone that affects mood, appetite and sleep, is also implicated in causing SAD, as is vitamin D – but their exact role is still under research.

What are the symptoms of SAD?

SAD is marked by extreme tiredness, withdrawing from social activity, increased appetite, gaining weight and craving carbohydrates.

Other symptoms include “enduring low mood… anxiety, irritability, low self-esteem, or a reduced ability to focus”, psychotherapist Eloise Skinner tells Sky News.

The hypersomnia of SAD is different to the kind of tiredness a coffee will fix, Dr Wainwright stresses: “This is really just not being able to get out of bed unless you really have an urgent need to do so and sleeping for those really long periods.”

Social withdrawal can “get in a vicious cycle”, he adds. “You’re not going outside because you’re feeling tired and you don’t want to see people in that state, so you stay home longer and it just sort of exacerbates it.”

SAD lamps, CBT and misconceptions

Breaking those behaviour feedback loops using CBT – cognitive behavioural therapy – has been proven to work for SAD.

Light therapy also has good evidence behind it, particularly using very bright light of up to 10,000 lux, Dr Wainwright says. It involves sitting in front of a lightbox or “SAD lamp” for 30 to 60 minutes each morning to simulate the sunlight that’s missing in winter.

Having lights that slowly warm up in the morning, simulating dawn, can also be helpful, Dr Wainwright says.

Anti-depressants can also work well, he says, including SSRIs such as fluoxetine (Prozac) and sertraline (Zoloft).

Bupropion is commonly prescribed in the US, although it is not currently available in the UK. It is used as a preventative measure and prescribed a couple of months before winter and taken until spring.

Maintaining good sleep hygiene (having a good routine) and being consistent with sleep-wake cycles is also beneficial, Dr Wainright says – although he acknowledges this is “easier said than done” when you are “exhausted all the time”.

There are a number of effective treatments for SAD, he says, so people don’t have to “suffer in silence”.

But there are also a number of misconceptions about dealing with it: “The idea that you can out-think this or just go for a walk in the park or spend more time with your friends or stop eating so much or stop eating carbs.

“People say just go off to southern Europe on holiday for a few days and you’ll be right as rain, but that’s not the case with mental illness. This is a serious medical condition.”

A young man is using a sunlight simulator lamp in his home office to combat the effects of Seasonal Affective Disorder. Pic: iStock
Image:
Sunlight simulator lamps can help combat SAD. Pic: iStock

Read more from Sky News:
Suppressing negative thoughts could help mental health
Just 22 minutes’ exercise to offset effects of sitting down

‘A harrowing time for many’

SAD can be “debilitating”, consultant psychologist Dr Elena Touroni tells Sky News.

“It goes far beyond just feeling a bit sluggish or unmotivated during the winter months.

“Those with SAD experience depression and fatigue in a way that impacts their day-to-day life.”

SAD might mean people are unable to work or care for their family, Dr Wainright says.

“For many people this is a harrowing time. To have potentially six months of the year in a depressive age where you’re withdrawing from activities, your energy levels are down, you’re sleeping far more than you should – these are major disruptions to someone’s life.”

Who is predisposed to SAD?

Young people between 16 and 30 are more likely to be diagnosed with SAD, as are women.

One study found women are two to three more times likely to be diagnosed with SAD – although Dr Wainright points out men could be suffering the same symptoms, but not reporting them to a doctor.

People living further away from the equator are also more likely to have SAD due to shorter days. This includes populations in Scandinavia, northern America and Canada.

What about summer SAD?

Summer SAD affects a small proportion of people with SAD who suffer seasonal depression in the summer months rather than winter.

Rather than over-sleeping and seeing an increase in appetite, people may suffer insomnia and a loss of appetite.

Why symptoms come on at that time of year is not well understood, Dr Wainwright says, but it could be the circadian rhythm misfiring due to a “time lag” of damage done over winter.

“It’s a very misunderstood condition,” he says.

Police call for calm after outbreak of ‘disorder’ in Leicester | UK News

Police and community leaders in Leicester are calling for calm as they deal with “disorder” on the streets, which has bubbled over again following an India v Pakistan cricket match last month.

Additional officers are being sent to the East Leicester area and stop-and-search and dispersal powers have been put in operation.

Speaking on a Twitter video on Saturday, Leicestershire Police temporary chief constable Rob Nixon said: “We have had numerous reports of an outbreak of disorder in parts of the East Leicester area of the city.

“We have got officers there, we are taking control of the situation, there are additional officers en route and dispersal powers, stop search powers, have been authorised.

“Please do not get involved. We are calling for calm.”

Reports circulating on social media said the spark point was a protest march on Saturday afternoon.

Footage online shows police, some with dogs, attempting to hold back two sets of crowds as objects including glass bottles are thrown. Some people are carrying sticks and batons.

Leicester MP Claudia Webbe also called for calm and urged people on the streets to go home.

“Like many Leicester East residents, I am concerned by ongoing reports of ‘hate-filled clashes’, including those which emerged today.

“It is vital that we work together to share the message of tolerance so that we can bring our communities together.

“This is a time for cool heads. I implore everyone to go home.”

On Friday, chief constable Nixon said there had been a total of 27 arrests as part of “our policing operation in the East Leicester area”.

He said the area had experienced “challenging times” and high visibility policing patrols would continue there.

He issued a message of thanks to the community for continuing to work together to call for calm in the area.