Everyone has a theory about their dreams and the science or meaning behind them. And when the weather hots up, the more bizarre they tend to get. “Dreams are a fascinating and enigmatic phenomenon that occur during sleep, encompassing a vast realm of imaginative experiences,” says sleep expert and CEO of MattressNextDay, Martin Seeley. “They are a collection of thoughts, images, sensations, and emotions that unfold within the theatre of our minds.” Why do we dream? When we sleep, our brain enters a complex state where it engages in various cognitive processes, explains Seeley, including memory consolidation, problem-solving and emotional regulation. “Dreams are thought to emerge from these processes, weaving together fragments of memories, desires, fears, and subconscious thoughts into a narrative or non-linear sequence,” adds Seeley. “And they can be surreal, vivid, or mundane, blurring the boundaries between reality and fantasy.” While the precise purpose and meaning of dreams remains a subject of exploration and debate, Seeley says they can serve as a portal into the inner workings of our minds: “Providing a canvas for exploration, processing of emotions, and glimpses into the subconscious depths of our psyche.” Why do we dream more when it’s hot? Lisa Artis, deputy CEO of The Sleep Charity, says: “When the weather is hot, it can disrupt our sleeping patterns, making it difficult to fall asleep in the first place – and causes us to wake more often during the REM (rapid eye movement) sleep phase.” REM sleep is where we experience intense dreaming, explains Artis – so waking during or at the end of this cycle can mean we are more likely to remember our dreams. “Dreams happen regularly, but are often forgotten and our mind’s way of unpacking the day’s events, dealing with stress and sorting through our day-to-day thoughts,” notes Artis. Our body heat generally peaks in the afternoon then starts to drop over an evening to prepare us for sleep, says Artis. Melatonin, the sleep hormone, is produced when this happens.“An ideal temperature is around 16-18°C and anything around the 24°C mark can cause restlessness,” says Artis. “So, it’s no surprise that when we’re experiencing a heatwave with temperatures reaching over 30°C, it affects our sleep.”Can a heatwave really make dreams more surreal? The connection between heatwaves and the content or nature of dreams is not fully understood. However, there may be a few possible explanations if your dreams seem weirder when the weather heats up – although Seeley points out these are all speculative. First off, he agrees it may have a lot to do with the fact we’re less comfortable and waking more when it’s hot. “These frequent awakenings can interrupt the normal sleep cycle and result in a higher probability of remembering dreams, including the more unusual or vivid ones,” he notes. “So, during a heatwave, the increased frequency of waking up during the night might contribute to a greater recall of strange or funky dreams.” Secondly, the body’s physiological response to heat may influence brain activity, he adds: “Heat can affect neurotransmitter levels, such as serotonin and dopamine, which play a role in regulating mood and emotions. These alterations in neurotransmitter activity might impact the content and emotional tone of dreams, potentially leading to more surreal or bizarre experiences.” Psychological factors could also play a role. Heatwaves can cause restlessness and increased stress levels in some individuals. Seeley adds: “Stress and emotional fluctuations can manifest in dreams as strange or unusual scenarios, as the mind processes and attempts to make sense of these experiences.” Can we stop strange heatwave dreams happening? While it’s probably not possible to completely control the content of our dreams, there are certain strategies you can try to promote better sleep – and potentially reduce the likelihood of experiencing a restless night and unusual dreams during hot weather. Create a cool sleep environment: “Use fans, air conditioning, or open windows to circulate cool air in your bedroom – and consider using lightweight, breathable bedding materials,” says Seeley. Stay hydrated: “Drink enough water throughout the day to prevent dehydration, especially during hot weather,” he continues. “Being adequately hydrated can help maintain a balanced sleep cycle.” Practice relaxation techniques: “Engage in activities that promote relaxation before bed, such as deep breathing exercises, meditation, or taking a warm bath,” suggests Seeley. “These practices can help calm your mind and promote a more restful sleep.” Read More Charity boss speaks out over ‘traumatic’ encounter with royal aide Ukraine war’s heaviest fight rages in east - follow live All the times Kate has channelled the late Queen’s style since her death It’s not just dry skin: 5 things everyone needs to know about eczema YouTube begins verifying videos by UK doctors to tackle health misinformation

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Lewis Hamilton criticised Formula One’s stewards after he was penalised for colliding with Sergio Perez in Saturday’s rain-hit sprint race in Belgium. Max Verstappen overcame Oscar Piastri’s impressive challenge to land another win ahead of Sunday’s main event in Spa-Francorchamps. Piastri finished runner-up with Alpine’s Pierre Gasly a surprise third. Hamilton crossed the line in fourth, but was demoted to seventh after he was dealt a five-second penalty for making contact with Perez as they diced for position through Stavelot. Perez sustained race-ending damage in the accident – with Red Bull team principal Christian Horner accusing Hamilton of putting a big hole in the side of his driver’s machine. But Hamilton, drawing on a famous quote from his childhood hero Ayrton Senna, said: “As Ayrton said, if you no longer go for a gap that exists, then you are no longer a racing driver. “That is what I did. And when I watched it back it feels like a racing incident to me. “The conditions were tricky out there. We are doing our best and it wasn’t intentional. He was slow and I went up the inside and I was more than half-a-car length alongside. “I feel like we should not be deterred from racing. It would have been nice to finish fourth but I don’t really care about finishing fourth, I want to win.” The four FIA stewards here – including former British grand prix driver Derek Warwick – also punished Hamilton with two points on his licence. Surmising the lap-six flashpoint, the quartet determined: “Hamilton was attempting to pass Perez on the inside at Turn 15. “While Perez was giving little room on the inside for Hamilton, Hamilton drove onto the kerb and subsequently understeered into Perez. The stewards consider that Hamilton was predominantly at fault for causing a collision.” However, Mercedes boss Toto Wolff backed his superstar driver, adding: “It was absolutely a racing incident. This is a sprint race. We want to see them racing. “The argument about the damage isn’t valid because he (Perez) was going backwards before then. Massively backwards. And then when you look at that corner, they were side-by-side, and it takes two to tango. It’s a racing incident. For me that’s really clear.” The start to Saturday’s dash around Spa-Francorchamps was delayed just six minutes before it was due to begin after the heavens opened. A 30-minute postponement ensued. One formation lap behind the safety car became five in a bid to make the track safe enough to race with visibility caused by spray a major concern ahead of this weekend’s event. Only four weeks ago, Dutch 18-year-old Dilano Van ‘t Hoff lost his life after a crash during a rain-hit Formula Regional European Championship race. The approach from race director Niels Wittich resulted in Saturday’s round being reduced to just 11 laps. But Wolff added: “You can absolutely understand that everyone wants to play it safe. “We have had terrible accidents here – the last one under similar conditions in the race where drivers couldn’t see because of the spray. So the approach needed to be on the super-safe side and that was right thing to do.” By the time the safety car peeled in, the track was good enough for the intermediate tyres. And Piastri benefited from being among 10 of the 20-strong field to change from the full wets before a proper racing lap had even taken place. Verstappen switched to inters at the end of the first lap round allowing Piastri to lead an F1 race for the first time in his career. But on the sixth lap – following a safety-car period to deal with Fernando Alonso crashing out – Piastri’s defence lasted only a handful of corners. Verstappen tracked Piastri through the fearsome Eau Rouge-Raidillon section and then blasted by on the Kemmel Straight to claim another win and extend his championship lead from 110 points to 118. Asked if it was a mistake not to stop for inters at the very start of the race, Verstappen said: “No, it was just a safer call. “I could have come in first and be blocked by other cars in the pits. We lost one position but we knew we were quick and when we put the inter tyres on we were flying.” Read More Charity boss speaks out over ‘traumatic’ encounter with royal aide Ukraine war’s heaviest fight rages in east - follow live Max Verstappen beats Oscar Piastri to sprint race pole in Belgium How Max Verstappen and record-breaking Red Bull compare to Formula One greats I held my breath – Lewis Hamilton enjoys ‘extraordinary’ run to pole in Budapest