Sleep plays a central role in memory consolidation - the process by which newly acquired information is stabilized and integrated into long-term memory stores. Research from institutions including Harvard Medical School and the Max Planck Institute for Human Cognitive and Brain Sciences has shown that different stages of sleep contribute to different types of memory. Slow-wave sleep, or deep sleep, appears to be particularly important for declarative memory - the kind that stores facts and events.
Rumination activates the default mode network (DMN) - the brain's self-referential processing system. This is the neural circuitry that fires when you're thinking about yourself in relation to others: your identity, your social standing, your mistakes. It's the brain asking, over and over, What does this say about me?
I used to brag about how little sleep I got. It felt like a superpower: I could sleep just three or four hours a night, and still operate at a very high level. That helped me get ahead early on. As a teen, I bused tables and sold firewood. By the time I was 19, I bought a house (which was possible because it was the subprime mortgage days). Having a mortgage gave me real responsibility at a young age.
"I started getting into the frame of mind most people get sucked into. I worried, 'What's going on? Is there something wrong with me?'" he says. That fear of not being able to sleep is a phenomenon called "sleep anxiety," says Orma, who went on to become a specialist in insomnia treatment. Left untreated, that anxiety can prevent people from actually falling asleep. "The more you focus on it, the less chance you'll sleep, which then makes you more anxious. That's the cycle that spins," he says.
When Matt Hillier was in his 20s, he went camping with a friend who was a nurse. In the morning she told him she had been shocked by the snoring coming from his tent. She basically said, For a 25-year-old non-smoker who's quite skinny, you snore pretty loudly,' says Hiller, now 32. The Guardian's journalism is independent. We will earn a commission if you buy something through an affiliate link. Learn more.
I tested AGZ's chocolate and mint flavors, which come with a frother, and you can blend the powder with water or milk, either warm or cold (although I think it tastes the best with milk, like a frothy hot cocoa). The drink doesn't taste overly sweet and has a nice, rich chocolate taste. The mix is melatonin-free, instead with adaptogens, herbs, and minerals, including magnesium, vitamin B6, L-theanine, ashwagandha, and calming herbs.
It's normal to feel sluggish during the winter. Cold temperatures and fewer hours of sunlight can mean less time outdoors and more time staring at our screens. For some people, these cold-weather habits may contribute to a sleep disruption, known as winter insomnia. This isn't a clinical condition, but it might begin or worsen during the winter months.
Sleep banking is essentially extending your normal sleep hours in the nights leading up to a known period of sleep deprivation. On the face of it, it appears unlikely banking sleep could counter the decreased alertness and other cognitive decrements that we experience when deprived of sleep, or stop that strong sensation we get when our body wants sleep.
