One's temporary, the other is often built in. A bad night's sleep is far from the only reason we can get eye bags or dark circles. Breakthroughs, discoveries, and DIY tips sent every weekday. Whether it was caused by a night out with friends, a crying baby, or plain old insomnia, we all know that lack of sleep affects our bodies. In addition to fatigue and a yearning for coffee, poor sleep can leave us frowning at the dark, swollen circles under our eyes.

Every time I go through a breakup, I'm compelled to rewatch the noughties classic High Fidelity, in which OG softboi John Cusack mournfully chronicles a "top 10 list" of his all-time worst breakups, soundtracked by the albums that accompanied them. A sanctuary for a hurting Cusack, this battered boutique becomes a refuge for Chicago's other lost souls, giving its perennially hungover proprietor and a gaggle of local music nerds a place to lick their wounds. It's this kind of DIY community spirit that spills out of the screen as I dive into Wax Heads, a narrative game about managing a struggling record shop. A self-described "cosy-punk life sim", this colourful comic-book-esque caper channels everything great about High Fidelity, as the player learns the ropes during a chaotic first shift at the fictional Repeater Records. As I design posters for a local punk gig between slacking off on a legally distinct knock-off of a Tamagotchi, it's clear that Wax Heads sees the local vinyl shop as a musical mecca, a place where you spin tunes and befriend its weird and wonderful customers.

We're all regularly reminded that we should be getting at least seven hours of sleep every night. But whether it's laying awake with stress or being kept up by the children, in reality, many Britons get significantly less than this. Now, experts have warned that your face could be paying the price. Sleep tech firm Simba has used AI to reveal what can happen to your face if you don't get enough sleep. From dark circles to extra wrinkles, the images may serve as a reminder of the importance of getting a decent kip.

Everybody has heard about the latest cool thing™, which is DALL·E 2 (henceforth called Dall-e). A few months ago, when the first previews started, it was basically everywhere. Now, a few weeks ago, the floodgates have been opened and lots of people on the waitlist got access - that group included me. I’ve spent a day playing around with it, learned some basics (like the fact that adding “artstation” to the end of your phrase automatically makes the output much better…), and generated a bunch of (even a few nice-looking) images.

A key appeal of the recently proposed Neural Ordinary Differential Equation (ODE) framework is that it seems to provide a continuous-time extension of discrete residual neural networks. As we show herein, though, trained Neural ODE models actually depend on the specific numerical method used during training. If the trained model is supposed to be a flow generated from an ODE, it should be possible to choose another numerical solver with equal or smaller numerical error without loss of performance. We observe that if training relies on a solver with overly coarse discretization, then testing with another solver of equal or smaller numerical error results in a sharp drop in accuracy. In such cases, the combination of vector field and numerical method cannot be interpreted as a flow generated from an ODE, which arguably poses a fatal breakdown of the Neural ODE concept. We observe, however, that there exists a critical step size beyond which the training yields a valid ODE vector field. We propose a method that monitors the behavior of the ODE solver during training to adapt its step size, aiming to ensure a valid ODE without unnecessarily increasing computational cost. We verify this adaption algorithm on two common bench mark datasets as well as a synthetic dataset. Furthermore, we introduce a novel synthetic dataset in which the underlying ODE directly generates a classification task.

Changes to our face as we age can be completely normal – but they can also be a sign of a serious medical condition. The dark circles around your eyes or the acne breakout with excess facial hair may be a cause for concern. Thinning eyebrows and red blotches on your cheeks could also be an indication of a health problem. Dr Susan Taylor, an associate professor of dermatology at the University of Pennsylvania's Perelman School of Medicine, appeared on the Megyn Kelly TODAY show in the US on Friday to explain the potential issues. The only accurate way of finding out whether you have a thyroid problem is to have a thyroid function test, where a sample of blood is tested to measure your hormone levels.