It's not just teenagers who are suffering from 'FoMO'

Anyone who has even briefly suffered insomnia knows that the advice is to banish gadgets from the bedroom.

There have been endless warnings about the disrupting effects of blue light, the neural problems caused by scrolling through web pages at 3am, and the psychological horror of allowing hard, unfiltered information to invade our cosy nests, when we should be sipping a milky drink and thinking about bunnies.

But research released by the University of Glasgow this week found that teenagers are waking up in the night purely to check for new tweets and messages on social media, and this is turning them into classroom zombies. Many are averaging just five hours of disjointed sleep a night, and the pressure to be online constantly is leading to an anxiety epidemic, according to the study.

And, with further bad news for phone-obsessives, child health specialist Dr Aric Siegman, a fellow of the UK's Royal Society of Medicine, has weighed in, pointing out that parents are often to blame for their children's phone habits, as they sit scrolling during dinner, Instagramming through family holidays, and tweeting instead of talking.

He recommends that two hours of screen-time a day is more than enough for teenagers, and he's right, of course. But while I agree that it's bad for their mental health, and sensible adults should be whisking smartphones from hands in one fluid movement, I'd be a hypocrite to try to get between my (22-year-old) son and his tablet - because I'm just as bad.

In fact, I have been addicted to my smartphone since the very first iPhone appeared. Of course, for my job as a journalist, I need to keep it with me, to check e-mail, research facts and make phone calls.

It's by my side wherever I go, and I depend on it to satiate my fear of missing out (FoMO) on interesting things. Call it PhoMO, if you will.

Like the teens who are so worried about missing a message that they ping awake in the small hours to check in, I have become a slave to my phone because, like a bad boyfriend, it gives just enough to keep me hooked.

And it's when I go to bed that it really comes into its own. When once I used to read novels, I now use that time to scroll through Twitter, read articles about the dangers of sugar, update Facebook, and post-process the photos I took on the journey to work (I commute through an attractive landscape).

Over time, it has got to the point where, if I'm "off-grid", I feel the way I did when I was off school, ill - as though all the exciting stuff is happening without me. The well-used Twitter trope "Late to this" isn't just an admission but an admonishment - and sleeping for eight solid hours means that adults, like their teenagers, will be late to everything.

"But what does it matter?" ask the smug sleepers who remain impervious to the siren lure of social media, who can "take it or leave it" and "don't really see the point". Who cares if you read a funny joke or reply to a friend at 3am or at 10am? To which I say, I care, because I want to watch the world as it unfolds and be a part of it, not show up late, when all the best seats have been taken.

Social media is like a gripping novel that never ends. When I was a child, I would stay up past midnight reading, because I couldn't bear not knowing what happened next. Now it's possible to do the same in real time, and there's no one to come in and switch off the light.

But there's a difference between my early hours iPhone addiction and that of a teenager. Mine is down to my fear of missing out on interesting things, but I suspect that a teenager's worry is about self-protection, a constant urge to check they're not being assessed on social media and found wanting.

I've never had to deal with bullying in cyberspace, or sexting, or a mistimed tweet being mocked. I haven't had to risk public shaming on Facebook, or a picture of my training bra going viral. And I never felt, as a teenager, that everyone's life was better than mine. I didn't know if it was or not. We didn't discuss it.

It must be both demoralising and exhausting. And while I can catch up on my sleep at the weekend, sadly, the kind of mental exhaustion and social media angst today's teens face isn't as easily overcome.