Health
Daylight saving time and early school start times cost billions in lost productivity and health care expenses
Daylight saving time disrupts sleep, leading to increased heart attacks, accidents, and mental health issues. Advocating for permanent standard time and later school start times could significantly enhance public health and reduce economic costs.
Last Updated on March 8, 2025 by Rod Washington
Joanna Fong-Isariyawongse, University of Pittsburgh
Investigations into the 1986 Space Shuttle Challenger disaster revealed that key decision-makers worked on little sleep, raising concerns that fatigue impaired their judgment. Similarly, in 1989, the Exxon Valdez oil spill resulted in a massive environmental catastrophe. The official investigation revealed the third mate, in charge of steering the ship, was running on too little sleep, among other problems.
While these specific disasters were not caused by daylight saving time, they are conclusively linked to fatigue, based on postaccident investigations and reports. They underscore the well-documented dangers of sleep deprivation and fatigue-related errors. Yet a vast body of research shows that every year, the shift to daylight saving time needlessly exacerbates these risks, disrupting millions of Americans’ sleep and increasing the likelihood of accidents, health issues and fatal errors.
Imagine a world where one simple decision – keeping our clocks aligned with the natural cycle of the Sun – could save lives, prevent accidents and improve mental well-being. It’s not just about an hour of lost sleep; it’s about how small disruptions ripple through our health, our workplaces and even our children’s futures.
I’m a neurologist who specializes in sleep health. I’ve seen firsthand the negative impacts of poor sleep; it has enormous personal and economic consequences.
Yet despite overwhelming research supporting better sleep policies – such as delaying school start times to align with adolescent biology and the adoption of permanent standard time – these issues remain largely overlooked in public policy discussions.
Sleep deprivation comes with real costs
Chronic sleep deprivation does more than leave people tired. It costs an estimated US$411 billion annually in lost productivity and health care costs. Poor sleep leads to workplace mistakes, car accidents and long-term health issues that strain businesses, families and the economy as a whole.
Fortunately, there’s a fix. Smarter sleep policies – such as permanent standard time and later school start times – can boost efficiency, improve health and save lives.
Up before dawn
Teenagers are the most sleep-deprived age group in the U.S. Multiple studies and surveys show that anywhere from 71% to 84% of high school students report getting insufficient sleep.
This is largely due to early school start times, which force teens to wake up before their biological clocks are ready. If you have a teenager, you probably see it every day: The teen struggling to wake up before sunrise, rushing out the door without breakfast, then waiting in the dark for the school bus.
More than 80% of public middle and high schools in the U.S. start before 8:30 a.m., with 42% starting before 8 a.m. and 10% before 7:30 a.m. As a result, some districts have bus pickups as early as 5 a.m.
Teenagers are going through a natural shift in their circadian rhythms by about two hours. This shift, driven by hormones and biology, makes it hard for them to fall asleep before around 11 p.m. The bodies of teens aren’t wired for these schedules, yet schools and society have designed a system that forces them to function at their worst.
Declining scores, drowsy driving and depression
Sleep-deprived teens have lower grades and test scores, more car crashes caused by drowsy driving, more alcohol and drug use and higher rates of depression, anxiety suicide and aggressive behavior, including carrying weapons.
Along with the health benefits, studies have found that moving school start times to 8:30 am or later could add $8.6 billion to the economy within two years, partly by increased graduation rates.
While concerns about increased transportation costs exist, such as the need for additional buses or drivers due to staggered school start times, some districts have found that optimizing bus routes can offset expenses, making the change cost-neutral or even cost-saving. For instance, a study in Boston found that reorganizing bus schedules using advanced algorithms reduced the number of buses needed and improved efficiency, which allowed high school students to start later and better align with their natural sleep cycles. This change not only supported adolescent sleep health but also saved the district $5 million annually. https://www.youtube.com/embed/OR6il9otpqM?wmode=transparent&start=0 Studies show that daylight saving time does not reduce energy use.
More heart attacks, car wrecks and suicide
Every March, most Americans shift their clocks forward for daylight saving time. Studies show this change disrupts sleep and leads to measurable adverse outcomes, including a significant increase in heart attacks. These effects linger for days after the shift, as sleep-deprived workers struggle to adjust.
The mental health impact is also severe. Suicide rates increase in the weeks following the switch, particularly for those already vulnerable to depression.
Unlike daylight saving time, standard time follows the body’s natural circadian rhythm, which is primarily regulated by exposure to sunlight. Our internal clocks are most stable when morning light exposure occurs early in the day, signaling the body to wake up and regulate key biological functions such as hormone production, alertness and metabolism. In contrast, daylight saving time artificially extends evening light, delaying the body’s release of melatonin and making it harder to fall asleep at a biologically appropriate time.
Studies have found that adopting permanent standard time could prevent up to 5,000 suicides annually by reducing seasonal depression, decrease errors, injuries and absenteeism in the workplace and make roads safer, potentially preventing 1,300 traffic deaths each year.
Times are changing
The U.S. tried permanent daylight saving time in 1974. It was so unpopular that Congress repealed it within nine months.
Russia tried it too, in 2011, but switched back three years later. The United Kingdom dropped permanent daylight saving time in 1971 after three years, and Portugal in 1996 after four. All of these countries found that the switch caused widespread public dissatisfaction, health concerns, more morning car accidents and disrupted work schedules. No country is currently on year-round daylight saving time.
These examples provide real-world evidence that permanent DST is undesirable due to public dissatisfaction, safety concerns and negative health effects – all three countries attempted it and ultimately reversed course. Since 2022, there has been renewed debate, largely driven by former U.S. Sen. Marco Rubio’s Sunshine Protection Act, which aims to make DST permanent.
However, the name is misleading because it doesn’t “protect” sunshine but rather eliminates critical morning light, which is essential for regulating circadian rhythms. Major health organizations, along with the National Safety Council, strongly oppose permanent DST due to its well-documented risks.
There are signs that suggest the U.S. is finally waking up to these problems. Out of 13,000 school districts, 1,000 have independently adopted later school start times. California and Florida have enacted laws requiring high schools to start no earlier than 8:30 a.m. California’s mandate went into effect in 2022, and Florida’s is set to begin in 2026.
Permanent standard time and later school start times are not radical ideas. They’re practical, evidence-based solutions based on human biology. Implementing these changes nationally would require congressional action. However, current federal law already allows states to adopt permanent standard time, as Arizona and Hawaii have done, setting a precedent for the rest of the country.
Joanna Fong-Isariyawongse, Associate Professor of Neurology, University of Pittsburgh
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Last Updated on March 11, 2026 by Daily News Staff
Shelia R. Cotten, Clemson University
What is the first thing you do in the morning after you awaken? Many people immediately check their phones for notifications of messages, alerts and social media updates by their social ties.
Ninety-seven percent of U.S. adults report owning a cellphone, with 90% reporting that they own a smartphone.
While some researchers and media outlets portray phone use as detrimental, the reality is that the effects of technology use, including phones, vary depending on multiple factors. These include the amount, type, timing and purpose of that use. What is best for one group may not be best for another when thinking about technology use.
As a researcher who studies technology use and quality of life, I can offer some advice to hopefully help you thrive in a phone-saturated world. Some people may struggle with how to effectively use smartphones in their daily lives. And many people use their phones more than they think they do or more than they would like at times.
1. Monitor your use on a weekly basis
If the hours per day are increasing, think about why this is the case and whether this increased use is helping or hurting your everyday activities. An aspect of digital literacy is understanding your usage patterns.
2. Consider how you can use these devices to make your life easier
Using a smartphone can help people access online information, schedule appointments, obtain directions, communicate through a variety of mechanisms and potentially be in constant contact with their social ties.
This availability and access to information and social ties can be beneficial and help people juggle work and family responsibilities. However, it may also be related to work intensification, information overload, decreased well-being and the blurring of work/nonwork boundaries.
Weighing the pros and cons of use may help you understand when your phone use is beneficial versus detrimental.
3. Silence nonessential notifications and alerts
Do you really need to know that an old friend from high school messaged you on Facebook at that particular moment?
4. Select particular times during the day for social media
Be deliberate about when you allow yourself to use your phone for social media and other activities. Knowing these times each day may help you concentrate as well as help you to use your phone in more useful and productive ways.
5. Avoid phone use at bedtime
Don’t look at your phone last thing before going to sleep or first thing when you awaken. Have you ever checked email one last time before going to sleep, only to find a message that gets your mind racing and ends up impeding your rest?
6. Choose when not to use your phone
Set times and situations when you are not going to use your phone.
Some of my research has shown that using your phone when in the presence of others who are not using devices, particularly older adults, can be perceived as rude, deter communication and induce distress. My colleagues and I termed this situation the physical-digital divide.
7. Find your own phone-use balance
Don’t compare yourself with others in terms of amount of use but be cognizant of when your use is beneficial versus perhaps leading you to feel stressed or distracted.
8. Moderate phone-as-distraction
Using your phone as a distraction is OK, but do it in moderation. If you find yourself constantly turning to your phone when you are bored or working on something that is hard, try to find ways to maintain your focus and overcome the challenges you are experiencing.
9. Set boundaries
Let your immediate social ties know that you are not going to be checking your phone constantly. While people often expect immediate responses when they message others, the reality is that the majority of messages do not need an immediate response.
10. Be a savvy consumer of online information
This is not exclusive to phones, but it is relevant given the proportion of people who report using their mobile phones and other digital devices to access news and social media. In the era of mis- and disinformation, being critical of information found online is a necessity.
These suggestions can help you to be more cognizant of how much you are using your phone as well as the reasons you are using it. It’s important for your well-being to be a critical consumer of technology and the information you glean from using your devices, particularly your ever-present mobile phone.
Shelia R. Cotten, Provost’s Distinuished Professor of Sociology, Anthropology and Criminal Justice and Communication, Clemson University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Our Lifestyle section on STM Daily News is a hub of inspiration and practical information, offering a range of articles that touch on various aspects of daily life. From tips on family finances to guides for maintaining health and wellness, we strive to empower our readers with knowledge and resources to enhance their lifestyles. Whether you’re seeking outdoor activity ideas, fashion trends, or travel recommendations, our lifestyle section has got you covered. Visit us today at https://stmdailynews.com/category/lifestyle/ and embark on a journey of discovery and self-improvement.
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health and wellness
Study Links Agent Orange Exposure to Higher Risk of Rare Melanoma
A study revealed that U.S. veterans exposed to Agent Orange are at increased risk of developing acral melanoma, a rare skin cancer located in areas not typically exposed to sunlight. With higher odds of diagnosis and poorer prognosis, early detection in veterans is vital for effective treatment and improved outcomes.
Last Updated on March 9, 2026 by Daily News Staff
(Feature Impact) A new study found U.S. veterans exposed to Agent Orange face a higher risk of developing a rare and often overlooked form of melanoma that appears on the hands and feet, and under the nails.
Researchers reported in “JAMA Dermatology” that veterans with documented exposure to the herbicide had significantly higher odds of developing acral melanoma, a subtype of skin cancer that forms on the palms, soles and nail beds.
Unlike most melanomas, which are associated with ultraviolet radiation, acral melanoma develops in areas not typically exposed to the sun. It can resemble a bruise under a toenail or a dark patch on the bottom of a foot – locations that are easily missed and not commonly associated with skin cancer.
Because of its unusual appearance and location, acral melanoma is often diagnosed at later stages, when treatment is more difficult and survival rates are lower.
The researchers analyzed 20 years of Veterans Health Administration data, comparing more than 1,200 veterans diagnosed with acral melanoma with more than 5,000 veterans without melanoma. Veterans exposed to Agent Orange had about 30% higher odds of developing the disease.
The findings suggest Agent Orange may be an underrecognized risk factor for acral melanoma, particularly for veterans who may not view themselves as at risk for skin cancer because of limited sun exposure or darker skin tones.
“Identifying exposures that may increase risk can help inform earlier recognition and, ultimately, earlier diagnosis when treatment is most effective,” said Marc Hurlbert, chief executive officer of the Melanoma Research Alliance and a principal investigator on the study.
Senior author Dr. Rebecca I. Hartman of Brigham and Women’s Hospital said acral melanoma behaves differently from other melanomas and often responds less well to current therapies.
“Acral melanoma has a poorer prognosis than the more common cutaneous melanoma because it is often diagnosed at later stages,” Hartman said. “Identifying risk factors is critical to improving detection and outcomes.”
Agent Orange was used extensively during the Vietnam War and exposure has been linked to several cancers and chronic illnesses. These findings add to evidence the herbicide may also affect the skin in ways not reflected in traditional melanoma awareness efforts.
Acral melanoma has also been associated with sex, race and ethnicity, and prior skin lesions. Researchers said the study supports treating the disease as distinct from sun-driven melanomas that dominate public education campaigns.
For veterans, the research highlights the importance of examining less visible areas of the body, including the bottoms of the feet, between the toes and under the nails. Changes in nail color, dark streaks or unexplained spots on the palms or soles should be evaluated by a health care provider, especially for those with known Agent Orange exposure.
Researchers said the findings could help guide future screening strategies for higher-risk populations and encourage further study of why acral melanoma differs biologically from other skin cancers.
Find more information at curemelanoma.org.
Photo courtesy of Shutterstock
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Food and Beverage
Get Smart About Your Heart: 4 tips to improve heart health
Heart health is essential for overall well-being, particularly as heart disease is a leading cause of death in the U.S. Key strategies include regular checkups, healthy eating—especially fruits like grapes—consistent exercise, and stress management to minimize risks.
Last Updated on March 8, 2026 by Daily News Staff
(Family Features) A crucial component of overall well-being, heart health can be a barometer for living a long, healthy and happy life. Because heart disease is the leading cause of death in the United States, according to the Centers for Disease Control and Prevention, taking steps to reduce your controllable risk factors – including poor diet, stress and inactivity – can set you on the right path.
From regular checkups and reducing stress to eating well – including heart-healthy snacks like grapes – and exercising regularly, these simple steps can help boost your heart health.
Know Your Numbers
Knowing key health metrics such as blood pressure, cholesterol levels, blood sugar levels and body mass index can help you and your health care provider identify potential risks early. Schedule annual checkups and discuss any concerns you may have about your heart health. Early detection and risk factor management can reduce the likelihood of developing heart disease.
Eat More Fruits and Vegetables
Incorporating a variety of colorful fruits and vegetables into your diet can ensure you get a broad range of vitamins, minerals, fiber and antioxidants, all of which contribute to a healthy cardiovascular system. For example, leafy greens like spinach and kale are high in potassium, which helps manage blood pressure. Fresh grapes contain 7% of the daily recommended intake of potassium, are a good source of vitamin K and are also a natural source of beneficial antioxidants and other polyphenols, including flavonoids, that can help relax blood vessels and promote healthy circulation. Some studies also suggest grapes have a beneficial impact on blood lipids and more.
In fact, one study found women who consumed 1 1/4 cups of grapes every day benefited from reduced blood triglyceride levels, LDL cholesterol levels, inflammatory proteins and other markers of heart disease.
Bright, juicy and bursting with flavor, Grapes from California can be enjoyed by the handful or blended with rich bananas, tangy Greek yogurt and a hint of almond in The Great Grape-Acai Smoothie Bowl for a delicious blend of fruity flavors at breakfast, lunch or snack time – it not only tastes great, but supports a healthy heart.
Get Moving
Regular physical activity is one of the most effective ways to improve heart health. Exercise strengthens the heart muscle, improves blood circulation and helps maintain a healthy weight. Aim for at least 150 minutes of moderate-intensity aerobic exercise per week, as recommended by the American Heart Association, such as walking, jogging or swimming with strength training exercises like lifting weights or using resistance bands mixed in to help reduce the risk of heart disease and improve overall cardiovascular health.
Manage Stress
Consider your stress level: chronic stress can negatively impact heart health, increasing blood pressure and other risk factors for heart disease. Techniques such as deep breathing, meditation, yoga and regular physical activity can help manage stress levels and maintain a healthy heart. Additionally, taking time to engage in hobbies, spending time with loved ones and ensuring adequate sleep are stress-reducing activities that improve overall well-being and heart health.
To learn more about the heart-health benefits of grapes, and find additional heart-friendly recipes, visit GrapesFromCalifornia.com.
The Great Grape-Acai Smoothie Bowl
Servings: 1
Chicken:
- 1/2 cup red Grapes from California, fresh or frozen
- 1/2 banana
- 1 frozen acai fruit pack (3 1/2 ounces)
- 1/2 cup plain, nonfat Greek yogurt
- 1/4 teaspoon almond extract
Topping:
- 1/4 cup sliced red Grapes from California
- 1 tablespoon sliced, toasted almonds
- 1 tablespoon pepitas
- 1 teaspoon chia seeds
- In small blender, combine grapes, banana, acai, yogurt and almond extract; process until smooth.
- Pour into bowl and top with sliced grapes, sliced almonds, pepitas and chia seeds.
Nutritional information per serving: 420 calories; 19 g protein; 63 g carbohydrates; 12 g fat (26% calories from fat); 2.5 g saturated fat (5% calories from saturated fat); 5 mg cholesterol; 45 mg sodium; 8 g fiber.
SOURCE:
California Table Grape Commission
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