KYIV (Reuters) -Fighting in eastern Ukraine has "somewhat intensified" as Ukrainian and Russian forces clash in at least three areas

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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The first video message Yevgeny Prigozhin shared since the end of his failed mutiny against Vladimir Putin, may have ended up being his last – with reports that he was on the passenger list of a jet that crashed about 60 miles from Moscow, apparently killing all on board. In the video, Mr Prigozhin was seen toting an assault rifle and wearing military fatigues, with his comments suggesting the clip was shot in an unnamed African country. The Wagner boss said during the clip that he is recruiting “strongmen” and said the group will “fulfil the tasks that were set” by the Russian government. The video was shared on Telegram channels affiliated with the Wagner group, as Mr Prigozhin said the mercenary group was “making Russia even greater on all continents, and Africa even more free”. “The temperature is +50 (122 degrees Fahrenheit) – everything as we like. The Wagner PMC [private military company] makes Russia even greater on all continents, and Africa – more free. Justice and happiness – for the African people, we’re making life a nightmare for Isis and al-Qaeda and other bandits,” he said in the video. In the background of the video, pickup trucks and other people dressed in fatigues could be seen. A telephone number was displayed as well for those who wanted to join the group. The Independent could not verify the date and exact location of the video. According to the Russian social media channels affiliated with the mercenary leader, the Wagner leader is recruiting fighters to work in the continent. He is inviting investors from Russia to put money in the Central African Republic through Russian House, a cultural centre in the African nation’s capital, they suggested. Mr Prigozhin was last seen in a video in July shot in Belarus shortly after his attempt to stir mutiny against the Kremlin failed, sparking speculation that he was taking refuge in the Russian ally nation as part of a deal to broker peace. He was later photographed on the sidelines of a Russia-Africa summit in the Russian city of St Petersburg. There is no official announcement of his current whereabouts. But one of the most prominent sites is the Central African Republic, where Wagner’s troops for hire have been active and accused of committing gross human rights abuses. Until June this year, the Wagner leader and his mercenary fighters, comprising mostly prison convicts, spent months fiercely fighting Ukrainian soldiers in the eastern region, mostly Bakhmut. Mr Prigozhin staunchly criticised Russia’s military performance and the top brass of the Russian defence ministry before he called for an armed uprising on 23 June to oust the defence minister and marched from Ukraine toward Moscow with his mercenaries. The hours-long mutiny ended after a deal was brokered by Belarusian president Alexander Lukashenko, following which Mr Prigozhin agreed to end his rebellion in exchange for amnesty for him and his fighters and permission to relocate to Belarus. Before moving to Belarus, Wagner handed over its weapons to the Russian military, part of efforts by Russian authorities to defuse the threat posed by the mercenaries. Read More ‘Wagner is victim of its own brand name’: How much of a threat does mercenary group pose in Belarus? Wagner mercenaries issue a chilling message on Poland’s doorstep: ‘We are here’ Belarus begins military drills near its border with Poland and Lithuania as tensions heighten Wagner tracker: Charting Yevgeny Prigozhin’s mercenary group through the Ukraine war Drones, military confusion and cracks in Putin’s authority: Ukraine’s push to sow discord in Russia’s ranks

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