When homeless shelters allow people to stay with their dogs and other pets, more unhoused people become more willing to stay in a shelter.

That’s what my team at the University of Southern California’s Homelessness Policy Research Institute learned when we evaluated California’s Pet Assistance and Support Program.

California’s Department of Housing and Community Development established this pilot program in 2019. Its goals were straightforward: to make homeless shelters more accommodating to people with pets – mostly dogs – so that people living on the streets don’t have to choose between staying in shelters or abandoning their pets.

The program disbursed US$15.75 million between 2020 and 2024 to 37 organizations across the state. The funding allowed shelters to build kennels or other pet-friendly spaces, provide pet food and supplies, and offer basic veterinary care. It also covered the costs of staffing and maintaining insurance required to operate pet-friendly shelters.

Evaluating the program

We did this evaluation in collaboration with My Dog Is My Home, a nonprofit that supports pet-inclusive housing and services for the homeless, and the American Society for the Prevention of Cruelty to Animals.

By all accounts, the program was a success.

We found that the program helped 4,407 people experiencing homelessness keep their pets while getting support. Many were able to enter shelters, and their animals received needed veterinary care. A total of 886 people ultimately moved into permanent housing with their pets – a higher success rate than the statewide average for homeless people in California.

Theoretically, this funding should have reduced the number of pet owners living on the streets. Yet since 2019, the year the program began, the number of homeless people in Los Angeles with dogs and other pets has increased.

A homeless man walks a dog toward a group of tents lining a sidewalk.
A homeless man walks a dog toward a group of tents lining a Los Angeles sidewalk in 2026. Qian Weizhong/VCG via Getty Images

I’ve seen this change firsthand.

Since 2017, I’ve led the USC research team that produces the annual homeless count estimates for Los Angeles. The U.S. Department of Housing and Urban Development requires this exercise for any city seeking federal funding for homelessness services.

One of the questions my team asks when interviewing thousands of homeless people each year is whether they have any pets.

Before the pandemic, we generally found that roughly 1 in 8 people did. We also found that nearly half of homeless pet owners had been turned away from a homeless shelter because it couldn’t accommodate their animal.

Despite programs like California’s Pet Assistance and Support program, my research team has found that the share of people living on the streets of Los Angeles who say they have a pet increased to roughly 1 in 5 by 2025.

Need for more pet-friendly programs

We still don’t know why the share of homeless people with pets has gotten so much larger.

It could be that rising housing costs, which is the main driver of homelessness, is pushing more pet owners into homelessness. Or, perhaps more homeless are adopting pets to deal with their social isolation and loneliness, two common conditions for people with nowhere to go.

An apartment building with a rectangular green space is shown.
The Weingart Tower, where some of Los Angeles’ formerly homeless people reside and receive social services, has a small dog park. Grace Hie Yoon/Anadolu via Getty Images

Either way, proposed cuts by the federal government to affordable housing and homeless services will only make matters worse.

The number of homeless people in Los Angeles has fallen by more than 4% since 2023 to just over 72,000 people in 2025. But based on my research findings, I would expect the number of people living on the city’s streets – with and without pets – to rise over time unless more affordable housing becomes available.

And growth in the homeless population may be hard to avoid without more efforts like California’s Pet Assistance and Support Program – on a larger scale than the pilot we studied.

This article originally appeared on The Conversation. You can read it here.

  • 5 ways how stickers psychologically boost the lives of grown adults
    Photo credit: CanvaStickers can be beneficial for adults as well as kids.

    We tend to associate stickers with childhood. As kids, we put them all over our rooms, furniture, books and notebooks, and wherever else our little hands could stick them. Yet, you have probably seen stickers being used and loved by adults as much, if not more, than kids. They can be found on water bottles, laptops, car bumpers, journals, and many other surfaces. You may even know an adult who uses a sticker chart like an elementary school kid does to keep track of their daily tasks. So, what gives?

    Why do adults love stickers? It turns out that there is psychology behind why many adults still love to stick stickers everywhere. Psychology professionals have reached out to GOOD to share some of the reasons why adult brains benefit from having and using stickers.

    Accountability awards

    Much like with children, many adults turn to stickers as an easy way to stay motivated to commit to a task or achieve a goal. While youngsters turn to sticker charts for reading goals or eating vegetables, adults can use them to motivate themselves to hit the gym or keep up with their budget. It may sound like an innocuous award, but that’s all it needs to be.

    “Small simple tokens or rewards like stickers often cause an instant dopamine rush that leaves us feeling a sense of joy or happiness even if it might be small or fleeting,” said psychology professor and licensed therapist Jillian Amodio

    “In my work as a psychologist, I often encourage clients to use sticker charts, simple grids where you put stickers up when you complete a task,” said registered psychologist Rod Mitchell. “I’ve had many clients who tried positive self-talk, only to find it slid off. Stickers worked for them.”

    It may sound immature on the surface, but what worked to establish good behaviors or habits as a kid can sometimes be just as effective for a grown-up.

    “I had one client who was very resistant to the idea, viewing it as childish,” Mitchell added. “He came back the following week and sheepishly told me that the sticker chart had worked like a charm.”

    Progress markers

    “In addition to creating a sense of accomplishment, seeing a sticker placed on a calendar, chart, or planner after achieving a goal can create a visual history of success,” said Dr. Lori Bohn, medical director at Voyager Recovery Center. “This history can motivate an individual to continue to work towards additional goals.”

    So the benefit of sticker charts isn’t just the dopamine rush, but encouragement. A person can look back at the progress they made, and any “failure” they see becomes an anomaly. It’s why many folks have created sticker charts for things as basic as eating healthy foods to more complex struggles like sobriety.

    “The stickers on the chart serve as small badges of who you are and what you did,” said Mitchell. “A client I had who was struggling to make time for his kids now looks back on a chart full of stickers and knows that he’s become the family man he wanted to be.”

    An easy form of expression

    Placing a sticker on a laptop or water bottle you use daily also allows us to express ourselves. That expression can be as insightful as a political message or as simple as “I like SpongeBob.” It can communicate to others what you’re all about without even speaking a word.

    “Stickers appeal to adults because they often offer an opportunity for self expression and trigger a sense of nostalgia,” said Amodio. “They can also serve social purposes when they speak to people who share similar interests, values, or devotion to a cause.”

    The same logic applies to why many people use digital stickers and emojis when texting or posting on social media.

    Psychologically instill civic duty

    So how powerful are stickers? According to extensive research, very. One sticker standout is they get people to the polls. The “I Voted” sticker folks receive after they vote is a great motivator. They allow folks to feel that dopamine hit after voting, while advertising to others to vote. Stickers can be a reward for voters, a reminder to those who plan on submitting their ballot, or provide FOMO (fear of missing out) to those who don’t vote.

    “It tells other individuals what the person did (voted), what the person values (voting), and what type of individual they perceive themselves to be (a voter),” said Dr. Bohn. “Social psychologists have shown that people are heavily influenced by social norms. In many cases, people rely on other people to help them understand if their behavior is acceptable or not.”

    It may feel like mental manipulation to get people to vote (because it is) but it’s important to note that the sticker doesn’t endorse any particular bill or candidate. It just endorses participation.

    Affordable artwork

    “Stickers are also visually appealing which creates a pleasurable response in the brain as well,” said Amodio.

    Stickers are used by adults because they like how they look. They’re an inexpensive and convenient form of artwork to display. They can easily be put in a book, on a wall, or most other surfaces. They don’t take too much space and are cheaper than paintings, sculptures, and other artwork.

    Many independent artists have turned their work into stickers. It’s a way to keep making a living while also making it affordable for people to purchase their art. Sticker art also benefits the brains of the artists and their supporters alike. It’s just like any other art piece you can display. 

    There are many valid and beneficial reasons why grown adults happily use stickers. The act as a boost, a motivator, and a way to express yourself in one. If you’re already a fan, keep on stickin’.

  • Student with severe facial burns from a frat house fire healed through new innovative treatment
    Photo credit: Hamilton Health SciencesExosomes helped heal severe facial burns with less scarring.
    ,

    Student with severe facial burns from a frat house fire healed through new innovative treatment

    Exosomes could change how we treat various maladies and disease.

    A university student who suffered severe facial burns has remarkably healed thanks to what is being called a world-first biological treatment.

    On December 2, 2025, 18-year-old Kaitlyn Jeffrey was caught in a fire at the Pi Kappa Alpha frat house at Western University in Canada. The fire was caused after rubbing alcohol had been thrown onto a lit torch. Kaitlyn was one of the five people rushed to the hospital for injuries. She suffered serious burns after her face and hair had been set ablaze.

    A new treatment

    Usually, treatment for such burns would require a skin graft, but the burn unit at Hamilton Health Services wanted to try something different. While skin grafting is helpful, the end result isn’t always ideal. Skin grafting can be a slow process that ends with scarring and often a patch-like appearance on the patient.

    “My vision for Kaitlin was to avoid skin graft surgery to her face and neck at any cost,” said Dr. Marc Jeschke, medical director of the hospital’s regional burn program and vice-president of research and innovation at HHS. “You can do the best graft on the planet, but you won’t return the skin to normal.”

    With Kaitlyn’s and her family’s permission, Dr. Jeschke sent an urgent application to Health Canada for a new type of treatment. After Health Canada approved, the doctors proceeded to give Kaitlyn an exosome treatment for her facial burns. The results were a rousing success.

    What are exosomes?

    Exosomes, or extracellular vesicles (EcVs), are present in almost all cells, tissues, and body fluids. They’re tiny vesicles released naturally by nearly all types of cells, carrying proteins, lipids, and genetic material. They essentially carry these “packages” of material and send signals from one cell to another to regulate their behavior. They’re not only being tested for medical applications like this one, but are a part of a skin care trend as well. While exosomes had been studied for burn research, they haven’t been tested on humans before.

    One trillion exosomes were collected and injected into Kaitlyn’s injured areas over the course of two treatments. This helped her cells coordinate in rapidly healing and repairing her facial tissue. The treatments also significantly reduced inflammation. 

    Astounding healing and new possibilities

    After she had healed, Katilyn was amazed and grateful at the result.

    “It’s honestly a miracle,” she said. “Being injured in the fire has also had a deep impact on my mental health, and it’s something I’m continuing to deal with. But having such good results, particularly to my face, is helping me move forward.”

    Exosomes are still being researched for other potential medicinal applications. They are being tested to see how well they could modulate immune responses and deliver biomarkers. This could help combat cardiovascular disease, neurological disorders, and cancer among other ailments. Time and research will tell whether exosomes can help those patients like they helped Kaitlyn.

  • Social media before bedtime wreaks havoc on our sleep − a sleep researcher explains why screens alone aren’t the main culprit
    Photo credit: Adam Hester/Tetra Images via Getty ImagesSocial media use before bedtime can be stimulating in ways that screen time alone is not.

    “Avoid screens before bed” is one of the most common pieces of sleep advice. But what if the real problem isn’t screen time − it’s the way we use social media at night?

    Sleep deprivation is one of the most widespread yet overlooked public health issues, especially among young adults and adolescents.

    Despite needing eight to 10 hours of sleep, most adolescents fall short, while nearly two-thirds of young adults regularly get less than the recommended seven to nine hours.

    Poor sleep isn’t just about feeling tired − it’s linked to worsened mental healthemotion regulationmemoryacademic performance and even increased risk for chronic illness and early mortality.

    At the same time, social media is nearly universal among young adults, with 84% using at least one platform daily. While research has long focused on screen time as the culprit for poor sleep, growing evidence suggests that how often people check social media − and how emotionally engaged they are − matters even more than how long they spend online.

    As a social psychologist and sleep researcher, I study how social behaviors, including social media habits, affect sleep and well-being. Sleep isn’t just an individual behavior; it’s shaped by our social environments and relationships.

    And one of the most common yet underestimated factors shaping modern sleep? How we engage with social media before bed.

    Emotional investment in social media

    Beyond simply measuring time spent on social media, researchers have started looking at how emotionally connected people feel to their social media use.

    Some studies suggest that the way people emotionally engage with social media may have a greater impact on sleep quality than the total time they spend online.

    In a 2024 study of 830 young adults, my colleagues and I examined how different types of social media engagement predicted sleep problems. We found that frequent social media visits and emotional investment were stronger predictors of poor sleep than total screen time. Additionally, presleep cognitive arousal and social comparison played a key role in linking social media engagement to sleep disruption, suggesting that social media’s effects on sleep extend beyond simple screen exposure.

    I believe these findings suggest that cutting screen time alone may not be enough − reducing how often people check social media and how emotionally connected they feel to it may be more effective in promoting healthier sleep habits.

    How social media disrupts sleep

    If you’ve ever struggled to fall asleep after scrolling through social media, it’s not just the screen keeping you awake. While blue light can delay melatonin productionmy team’s research and that of others suggests that the way people interact with social media may play an even bigger role in sleep disruption.

    Here are some of the biggest ways social media interferes with your sleep:

    • Presleep arousal: Doomscrolling and emotionally charged content on social media keeps your brain in a state of heightened alertness, making it harder to relax and fall asleep. Whether it’s political debates, distressing news or even exciting personal updates, emotionally stimulating content can trigger increased cognitive and physiological arousal that delays sleep onset.
    • Social comparison: Viewing idealized social media posts before bed can lead to upward social comparison, increasing stress and making it harder to sleep. People tend to compare themselves to highly curated versions of others’ lives − vacations, fitness progress, career milestones − which can lead to feelings of inadequacy and anxiety that disrupt sleep.
    • Habitual checking: Social media use after lights out is a strong predictor of poor sleep, as checking notifications and scrolling before bed can quickly become an automatic habit. Studies have shown that nighttime-specific social media use, especially after lights are out, is linked to shorter sleep duration, later bedtimes and lower sleep quality. This pattern reflects bedtime procrastination, where people delay sleep despite knowing it would be better for their health and well-being.
    • Fear of missing out, or FOMO: The urge to stay connected also keeps many people scrolling long past their intended bedtime, making sleep feel secondary to staying updated. Research shows that higher FOMO levels are linked to more frequent nighttime social media use and poorer sleep quality. The anticipation of new messages, posts or updates can create a sense of social pressure to stay online and reinforce the habit of delaying sleep.

    Taken together, these factors make social media more than just a passive distraction − it becomes an active barrier to restful sleep. In other words, that late-night scroll isn’t harmless − it’s quietly rewiring your sleep and well-being.

    How to use social media without sleep disruption

    You don’t need to quit social media, but restructuring how you engage with it at night could help. Research suggests that small behavioral changes to your bedtime routine can make a significant difference in sleep quality. I suggest trying these practical, evidence-backed strategies for improving your sleep:

    • Give your brain time to wind down: Avoid emotionally charged content 30 to 60 minutes before bed to help your mind relax and prepare for sleep.
    • Create separation between social media and sleep: Set your phone to “Do Not Disturb” or leave it outside the bedroom to avoid the temptation of late-night checking.
    • Reduce mindless scrolling: If you catch yourself endlessly refreshing, take a small, mindful pause and ask yourself: “Do I actually want to be on this app right now?”

    A brief moment of awareness can help break the habit loop.

    This article originally appeared on The Conversation. You can read it here.

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