Cannabis-induced psychosis is becoming increasingly common across the UK. With stronger strains easily available and a perception that weed is harmless, doctors are seeing worrying consequences for mental health.

What Exactly Is Psychosis?

Psychosis is not just a medical term; it describes a mental state where someone loses touch with reality. A person in a psychotic episode may hear voices, see things that are not there, or believe unusual ideas with unshakeable certainty. Everyday surroundings feel warped, thoughts become jumbled, and behaviour can change dramatically. These episodes can last days, weeks, or longer, and while many people recover, some continue to experience symptoms for years.

Psychosis is not a condition in itself but a symptom of underlying mental illnesses such as schizophrenia, bipolar disorder, or drug-induced disorders. And cannabis, once dismissed as a “soft” recreational drug, is increasingly proving to be a serious trigger.

Cannabis and Its Dark Side

The UK has no shortage of cannabis users. In the year to March 2024, about 2.3 million people reportedly admitted to using the drug. But while regular use has halved over the past two decades, psychiatrists are alarmed by a sharp rise in cannabis-induced psychosis cases. The problem is potent modern strains and the growing popularity of “skunk”.

Skunk is produced from unpollinated cannabis plants with naturally higher levels of THC, the psychoactive compound responsible for the drug’s “high”. Unlike traditional varieties, these turbocharged versions can push the brain into paranoia, hallucinations, and even long-term mental health conditions.

The Risk Behind the Smoke

According to reports, the public health problem is deepening. There has been a visible rise in the number of people needing intensive support for psychosis as a result of cannabis use. What begins with smoking a few ‘joints’ and feeling a bit paranoid can easily escalate.

The issue is compounded by the fact that cannabis is readily available online. High-strength weed can be bought and delivered with the same ease as ordering a takeaway. For some users, that ease leads them into dangerous territory. Over time, repeated exposure to potent cannabis does not just spark temporary paranoia; it can cement itself into a chronic psychotic state.

How Cannabis-Induced Psychosis Feels

For those caught in its grip, cannabis-induced psychosis can be terrifying. Hallucinations distort familiar environments, creating confusion and fear. Dissociation leaves people feeling detached from their own bodies or surroundings. Everyday interactions can feel hostile or threatening, and the person’s sense of what is real becomes fragile.

While these symptoms may fade once the drug wears off, for some they linger, leading to severe depression or even suicidal thoughts. Studies suggest cannabis can also trigger schizophrenia in vulnerable individuals, an illness characterised by recurring psychotic episodes, delusions, and long-term disability.

Why Skunk Is Different

You might wonder, why is today’s cannabis so much more risky? The answer lies in THC levels. Traditional cannabis varieties contained lower amounts of this psychoactive compound, and many also carried cannabidiol (CBD), a chemical thought to counteract some of THC’s mind-altering effects. Skunk, however, has been bred to maximise THC and reduce CBD.

This results in a product that is stronger, more destabilising, and far more likely to provoke psychosis. While occasional users may brush it off as a “bad trip”, for others, the effects can be life-altering.

A Growing Health Crisis

Despite the popular image of cannabis as a “chill” substance, psychiatrists are dealing with an entirely different reality. Hospitals and rehab centres across the UK are seeing more young people admitted with psychosis linked to cannabis. Over time, people can reach a psychotic state which would not go away, even if they stop smoking. They can become very depressed or suicidal.

The public health implications are significant. Not only do psychotic disorders put immense strain on the NHS, but they also derail lives, disrupting work, education, and relationships.

Rethinking “Harmless” Weed

The narrative around cannabis has long been tangled. To some, it is a natural plant, a stress reliever, even a medicine. But the reality is more complicated. Yes, cannabis contains compounds with therapeutic potential, but when engineered for potency and consumed regularly, it can become a gateway to enduring mental illness.

People need to know that today’s cannabis is not the same mellow joint their parents smoked in the 1970s. It is stronger, riskier, and capable of tipping vulnerable minds into frightening psychological territory.

Able-bodied people take many things for granted, whether it is their ability to function their limbs, hear or speak. These things make up for a huge part of one’s life and it is only when you lose it that you understand how valuable it was. Many people go through losing their voice or speech, it could be after a stroke, an accident or other health issues. Communicating with them after a traumatic event as such can be difficult and make them feel handicapped in many ways. So, what if we could hear them, without the extra effort, almost like looking into their minds?

Scientists have made a big leap forward by creating a brain implant that can turn a person's thoughts into spoken words. This special device isn't about mind-reading; it's the first of its kind that can actually "hear" and speak the words a person is only imagining in their head.

Developed by a team at Stanford University, this technology could be a huge help for people with severe paralysis who cannot speak on their own. For the very first time, researchers can understand what the brain is doing when someone is just thinking about speaking, offering a much more natural way for those with severe speech issues to communicate.

How the Technology Works

The study involved four individuals who had paralysis from conditions like ALS or a brainstem stroke. A device called BrainGate, which uses tiny sensors called electrode arrays, was implanted in their brains. Specifically, the implant was placed in the motor cortex, the area responsible for controlling speech. The participants were asked to either try to speak or simply imagine speaking certain words.

The device then picked up on the brain signals related to phonemes—the small, basic sounds that make up words (like the "c" sound in "cat" or the "a" sound). An advanced artificial intelligence (AI) program then took these brain signals and stitched them together to form full sentences.

The researchers found that even the signals from imagined speech were strong enough for the device to recognize words with up to 74% accuracy in real-time. This is a huge step forward because, as senior author Frank Willett explained, trying to speak for someone with paralysis can be exhausting and difficult. This new method could one day allow them to communicate fluently just by thinking.

Who Does This Tool Help?

The researchers explained how this tool could be very useful for people who have paralysis, as it would make communication easier. One of the biggest issues people with paralysis face is the change in communication style, and it has a huge impact on their daily life.

To understand how much impact it had a 2019 study published in the Disability and Rehabilitation journal looked at real life experiences of people with a neck-level spinal cord injury who did not use a ventilator. They were interviewed about how their communication changed and how it affected them.

This study explores what it's like to experience communication changes after a spinal cord injury in the neck. People shared how their voice and speech were different, the challenges they faced in being understood, and how these changes impacted their daily activities and social lives. The research shows that these communication issues have a wide-ranging effect, not just on a person's body but on their ability to interact with the world around them.

It would suffice to say that a device that could accurately communicate what they want could significantly impact their quality of life.

Addressing Privacy and Future Potential

The research team also considered the important issue of privacy. They were surprised to find that the device could sometimes pick up on words the participants weren't trying to imagine, such as numbers they were silently counting. To solve this, they created a unique "password" system.

The device only starts decoding thoughts when the user consciously "unlocks" it. In the study, simply imagining the phrase "chitty chitty bang bang" worked almost perfectly—98% of the time—to prevent unintended decoding. This shows that the technology can be designed with user privacy and control in mind.

The researchers are very hopeful about the future of this technology. They believe it will one day restore communication for people with paralysis, allowing them to speak as easily and comfortably as a regular conversation. This new tool offers another option for individuals who rely on such devices, providing a path toward more fluent and natural communication.

For over a half-century, the population narrative of the world has been one of unbridled expansion. From 2.5 billion in 1950, the population reached 8 billion in 2022 and could reach 10 billion before the half-century mark. But behind that top-line number, something much more significant is taking place: fertility is crashing on most of the world. Today's world fertility rate is 2.24 children per woman, slightly higher than the "replacement level" of 2.1. Projecting ahead to 2050, demographers anticipate it will fall below that mark.

That shift has far-reaching consequences. Falling fertility reconfigures societies, changes economic realities, and presents serious health concerns about how nations will provide for sharply aging populations. It is not a theoretical discussion of numbers; it is a matter of the future health and resilience of populations.

As fertility declines, one of the most direct consequences is population aging. The proportion of older adults increases dramatically when fewer babies are born. During the years 2025-2050, the share of the population aged 65 and older in declining countries will almost double—to more than 30 percent from 17 percent.

What Are The Health Risks Of Declining Population?

A growing older population means an unavoidable increase in chronic illness, from heart disease to Alzheimer's. Already stretched health systems will be under even more pressure to pay for long-term care, geriatric medicine, and terminal care. There will be fewer working-age people to pay for these through taxes or to deliver informal care. In most nations, particularly those in East Asia and Europe, this mismatch threatens to overwhelm welfare safety nets.

The dangers go beyond economics. Social isolation, depression, and mobility impairments become more widespread as populations age. Unless health systems become more focused on prevention, community-based care, and healthy aging, population decline may mean cumulative health decline and inequality.

Economic Stagnation and Health Funding

Low fertility has indirect impacts on health by slowing down economic growth. As the workforce shrinks, there are fewer taxpayers and consumers, thereby generating lower revenues for governments and slowing down innovation. With fewer scientists, doctors, and researchers, the pipeline of medical breakthroughs may dwindle.

In nations such as Japan, Italy, and South Korea, already facing sharp population drops, the pressure can be seen. Pension costs are absorbing more of national expenditure, with less capacity to spend on preventive medicine, medical research, and public health programs. If this trend goes worldwide, the consequences might include a worsening not only in economic health, but in the ability of nations to protect public health.

Historical Echoes And Crucial Differences

Humanity experienced depopulation previously, but the direction now is different. The 14th-century Black Death killed a quarter of Europe's population within a period of less than a decade, but that was a shock mortality. The 20th century experienced periodic declines during wars and famines. The fertility-driven decline experienced today is slower and more subtle, but conceivably more challenging to handle.

Unlike catastrophic plagues, however, the low fertility rates of today are usually the result of conscious personal decisions: postponement of marriage, increased availability of contraception, women choosing careers, urbanization, and the higher cost of raising children. That means policy responses cannot target mere survival but must trade respect for autonomy against measures that assist families with additional children.

Are There Any Possible Health Benefits of Population Decline?

It would be inaccurate to portray fertility decline as a sole crisis. There are possible benefits, particularly from a public health standpoint. Reduced populations may alleviate stress on the planet, lessening exposure to air pollution, climate hazards, and food insecurity. With fewer births, resources—ranging from education budgets to medical access—can be targeted, possibly enhancing child and maternal health.

Low fertility is also argued by economists as an opportunity for women to engage more in the labor force, increase household incomes, and allow families to spend more on the health and education of every child. Such "demographic dividend," observed in some regions of Asia following the post-war baby boom, indicates that it is possible to have smaller families and healthier, richer societies—if policies are aligned.

How The World Is Responding?

Societies with the most precipitous fertility drops are trying interventions, though progress has been mixed. South Korea, which has the lowest birth rate in the world, has introduced subsidized child care and subsidies to larger families. Japan has promoted flexible work schedules and increased parental leave. China abandoned its one-child policy, though its birth rate continues to fall.

From a health point of view, these policies are important because they can stabilize the proportion of working-age citizens to retirees, providing for sustainable funding of healthcare. But experts warn that policies aimed at boosting birthrates alone are not likely to turn it around rapidly. Immigration, education reform, and medical innovation will probably play equally critical roles in mitigating the health consequences of population decline.

What Is The Role Of Technology and Adaptation?

Technological progress in automation, digital health, and artificial intelligence might mitigate some of the implications of declining populations. Diagnostics supported by AI, caregiving robots, and telemedicine monitoring can potentially ease the pressure on reduced healthcare workforces. But depending on technology is perilous. The deeper issue is that health care systems must change to value prevention, wellness, and resilience in aging populations.

Increasing retirement ages, reconsidering the way communities care for older people, and spending on young people's health and education are all part of the answer. In the end, societies which prepare ahead for demographic change can potentially turn the fertility decline into a blessing for healthier, more sustainable lives.

The world today is at a demographic juncture. Fertility is declining, populations are aging, and the health implications are inescapable. Whether this is a crisis or a turning point will depend on policymakers' reactions.

If governments permit diminishing workforces and increasing health expenses to meet head-on, the consequence may be stagnation, inequality, and sapped healthcare systems. But through forward-looking policies that increase access to healthcare, strengthen families, invest in innovation, and reimagine aging, slowing fertility may instead create room for better, healthier, more balanced societies.

We live in a world that treats sleep like a competitive sport. Everyone has got a hack: tape your mouth shut, stretch your nostrils wider, eat two kiwis before bed. But according to experts, the real secret is not exotic fruit or gadgets; it is light, or rather, the absence of it.

The Great Sleep Hack Circus

Scroll through wellness feeds and you will find people swearing by everything from magnesium powders to bedtime meditation playlists. Some tricks have merit; others are straight out of the pseudoscience playbook. But amid the noise, one factor keeps coming up: how much light your body gets and when.

Darkness Is Your Sleep’s Superpower

Let us start with night. Darkness is not just cosy; it is medicine. When the lights go out, your brain flips into melatonin-making mode. That is the hormone that whispers, “Hey, it is time to crash.” But throw in a glowing phone screen or a streetlamp sneaking past your curtains, and suddenly your brain thinks it is noon in July.

The fix is to go all dark with blackout curtains, eye masks, and unplugged chargers. The darker your sleep space, the deeper and less interrupted your rest will be.

Morning: Flip the Switch

The irony? The same thing that wrecks your sleep at night is exactly what you need when you wake up. Sunlight is like nature’s alarm clock, telling your body to get moving, boosting your energy, and resetting your circadian rhythm so you do not feel like a zombie.

Experts say the trick is to step into daylight as soon as possible, before checking your phone, brewing coffee, or turning on the TV.

The Blue Light Harm

Of course, there is a modern nemesis in this story: blue light. Your phone, laptop, and TV blast out wavelengths that convince your brain it is still daytime. This results in no melatonin, no drowsiness, and no sleep.

The cure is not complicated; shut the screens at least an hour before bed. If you cannot, at least switch to night mode or throw on a pair of blue-light glasses. Better yet, trade doomscrolling for something less… glowy.

The Simple Formula

At the end of the day, you do not need kiwis or space-age gadgets. The best sleep formula is old-school:

• Cut screens and bright lights before bed
• Sleep in total darkness
• Soak up morning sunlight
• It is ridiculously simple, but it works because it’s wired into how your body actually functions.

Sure, studies suggest nutrients like magnesium might help you snooze, but the clearest evidence points to light as the MVP of sleep health. Darkness at night, sunlight in the morning – it is free, it is effective, and it is a lot less weird than mouth taping.