Anyone who’s not a morning person is reminded, frequently, that they’re not a morning person. For me, it’s being used as a barely sentient climbing frame when my children charge in at dawn. It’s the brain fog that takes a couple of hours to shake off at the start of each day. It’s the mild despair at seeing messages from colleagues who are already being productive, while I’m still summoning up the coordination required to pour out some breakfast cereal.
If you’re a night owl rather than an early-bird lark, the world is not organised in your favour. For most of us, work or school starts between 8-9am. If you’re a shift worker or a parent to young children, then your day likely starts even earlier. But for around 30 per cent of the population (me included) this runs counter to our biology. We’re slow to rise and slow to feel wakeful or energetic. In some cases (naming no names), we might be a little grumpy and monosyllabic, too.
And that’s because of our chronotypes, the body’s natural tendency to sleep and wake at certain times. Linked to our circadian rhythms – the internal clock that regulates a person’s sleep-wake cycle – chronotypes describe our sleep patterns, and the tempo of behaviours and characteristics that go with them.
Most of us think there are two chronotypes: night owls, like me, who feel productive, creative or just wide awake later in the evening; and morning larks, who can spring out of bed and jump straight into their running gear or a busy inbox.
Denne historien er fra July 2023-utgaven av BBC Science Focus.
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Denne historien er fra July 2023-utgaven av BBC Science Focus.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
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COULD MARINE CLOUD BRIGHTENING HELP US FIGHT CLIMATE CHANGE?
The theory behind marine cloud brightening is that brighter or whiter clouds reflect more sunlight back into space.
IS IT SAFE TO RUN EVERY DAY, OR SHOULD I DITCH MY RUN STREAK TO SAVE MY KNEES?
A running streak, where you run every day without taking rest days, can be highly motivating and beneficial for overall fitness. Running is great cardiovascular exercise and isn't to be discouraged (and finding a routine with some consistency is great). Getting a bit of exercise as often as possible is also hugely beneficial for your mental health.
WHAT MAKES THE MEDITERRANEAN DIET SO GOOD FOR US?
The Mediterranean diet may help you live longer, especially if you also adopt the lifestyle of people living near the Med during the 1950s.
WHAT IS MEXICO'S BLUE HOLE?
The world's deepest blue hole (marine sinkhole) lies off the coast of Mexico's Yucatán Peninsula. It's at least 420m (1,378ft) deep, but explorers still haven't found its bottom.
HOW CAN I TELL IF I'VE GOT HIGH CORTISOL LEVELS?
Cortisol is a hormone produced by glands in our bodies called the adrenal glands, which sit above the kidneys. It plays a critical role in various bodily functions, including regulating metabolism, reducing inflammation and helping the body respond to stress. While essential for our health, chronic elevation of cortisol levels can lead to several issues.
THE LUNGFISH
In 1836, European scientists discovered a peculiar animal from the River Amazon that they struggled to identify. Its eel-like body was a few feet long and its air-filled lungs persuaded anatomists it must be a reptile.
ARE WE THE ONLY SPECIES TO HAVE BEEN THROUGH A STONE AGE?
The Stone Age might conjure up images of early humans, sitting around a campfire or hunting prehistoric beasts, but evidence shows that we're not the only species that has learned how to work with stone tools. Wild chimpanzees (Pan troglodytes) use stone tools to crack open nuts.
Should we scrap daylight saving time?
Most of us look forward to the extra hour we get in bed every October, but researchers argue that changing the clocks twice a year harms our health
THE INTERNET OF ANIMALS
SCIENTISTS ARE USING ELECTRONIC TAGS AND SATELLITES TO TRACK WILD ANIMALS AND CREATE A DATA NETWORK THAT COULD HELP US ADDRESS THE BIODIVERSITY CRISIS
MUSIC FOR A DISTRACTED GENERATION
The number of things competing for our attention is often overwhelming. Can dreamy soundscapes created with neuroscience help our bewildered brains to concentrate?