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We all have days that drag. But if you’re tired more often than not, it could be for one of these reasons.

It’s perfectly normal to feel groggy upon waking. It’s simply a phenomenon known as sleep inertia that requires you some time for your energy to kick in and our body and brain to feel awake. “Hardly anyone feels fantastic when they first wake up,” says Scott Kutscher, M.D., board-certified neurologist and associate professor of sleep medicine at Stanford University. However, people typically perk up over the next 30 to 60 minutes, he says.

So, if you’re constantly tired several hours after leaving your bed, you might have a problem.

How to Know If Feeling Tired All the Time Is a Problem

We all have days—or even weeks—where we can’t seem to perk up. Blame it on an unusually heavy workload, a jump in running mileage, travel, or any number of other factors that can make the day drag. 

Unfortunately, figuring out when tiredness is a problem can be tricky. “Tiredness is a subjective experience, so it’s up to each person to feel for themselves when tiredness is interfering with their life,” Kutscher says.

If you notice that you’re more tired than normal, look at your diet and lifestyle habits. “Diet is very important, and sometimes forgotten as the reason why people may feel tired all the time,” says Eric Ascher, D.O., a family medicine physician at Lenox Hill Hospital in New York City. “Sometimes, adjusting the diet to focus less on sugar and processed foods will improve fatigue.”

Staying well-hydrated throughout the day and prioritizing good sleep hygiene may help, too. 

If you don’t feel perkier after two weeks of making lifestyle changes, Ascher suggests making an appointment to see your primary care physician. He or she will likely run blood tests to check for nutrient and hormone deficiencies, and screen for health conditions that cause fatigue, Ascher says. If it turns out that you do have a health issue, your doctor will be able to refer you to a specialist for treatment. 

6 Reasons You Might Be Tired All the Time

While it is normal to feel tired, sometimes it can be something more serious. In fact, fatigue is a key symptom of the following health conditions. 

1. Sleep Apnea

Sleep apnea is a potentially serious sleep disorder in which your breathing repeatedly starts and stops while you sleep. It’s also incredibly common, Kutscher says. In fact, an estimated 26% of adults between the ages of 30 and 70 have sleep apnea, per the American Academy of Sleep Medicine.

Sleep apnea can happen if the throat muscles relax (known as obstructive sleep apnea), if the brain doesn’t send proper signals to the muscles that control breathing (central sleep apnea), or a combination of the two (complex sleep apnea syndrome), per the Mayo Clinic. In any case, the result is broken sleep. 

“Our bodies don’t like interrupted sleep, so someone whose sleep is very interrupted is going to go through their day feeling as though they had poor sleep the night before,” Ascher says. 

2. Autoimmune Disease

Autoimmune diseases like lupus, rheumatoid arthritis, and type 1 diabetes occur when your immune system mistakenly attacks the healthy cells of your organs and tissues. While symptoms vary depending on the disease, fatigue appears in all of them. In fact, fatigue is often the most debilitating symptom for people with autoimmune disease, notes Harvard Health. 

“When someone has an autoimmune disease, their body is in an inflammatory state, and that puts a lot of stress on the body,” Ascher explains. That’s why you might feel tired all the time.

3. Iron-Deficiency Anemia

According to the National Heart, Lung, and Blood Institute (NHLBI), iron-deficiency anemia is a condition that develops if you don’t have enough of the mineral iron in your body. Iron is part of red blood cells, a protein that carries oxygen throughout your body and helps your muscles store and use oxygen. Without enough iron, your blood can’t deliver enough oxygen to power your body, leading to tiredness and fatigue, the NHLBI explains. 

Certain conditions can make it hard for your body to absorb iron, including celiac disease, ulcerative colitis, Crohn’s disease, and kidney disease. If you have one of these conditions, you may develop iron-deficiency anemia. However, iron-deficiency anemia can also occur if you lose blood. People with bleeding in the gastrointestinal or urinary tract, traumatic injuries, or heavy menstrual periods have a higher risk of iron-deficiency anemia, per the NHLBI.

4. Depression

Depression is a common mood disorder that affects your feelings, thoughts, and actions. You may feel persistently sad and hopeless, lose interest in normal activities, and/or feel anxious, notes the Mayo Clinic. At the end of the day, depression will cause you to feel fatigued more often than not, Ascher says. 

It doesn’t help that people with depression have a higher risk of sleep problems—75% have trouble falling asleep or staying asleep, per Johns Hopkins Medicine.

5. Type 2 Diabetes

Type 2 diabetes is a chronic condition that happens when your body doesn’t respond to insulin, a hormone that lets blood sugar into your body’s cells to use as energy, per the CDC. When your cells don’t respond to insulin (called insulin resistance), sugar builds up in your bloodstream, eventually leading to type 2 diabetes. 

Fatigue is one common symptom of type 2 diabetes, and may even stick around after you’ve gotten your blood sugar under control, per an August 2018 editorial in Diabetes Therapy. There may be several reasons for this, from lifestyle and nutrition choices to the mental energy needed to manage diabetes on a daily basis to the hormonal changes that come with type 2 diabetes, researchers say.

6. Hypothyroidism (Underactive Thyroid)

Your thyroid is a small, butterfly-shaped gland in the front of your neck that makes thyroid hormones. “These hormones regulate many different things, from metabolism to temperature,” Ascher says. 

For some people, the thyroid gland doesn’t make enough thyroid hormones—a condition known as hypothyroidism (underactive thyroid). “If your thyroid is underactive, you may feel sluggish and tired, because your thyroid isn’t producing enough hormones to keep up with your body’s needs,” Ascher explains. 

Most Olympic marathoners spend their youth focused on running. They join track clubs, compete in national championships, and pursue the sport from an early age.

Julia Mayer’s journey was very different.

Today, Mayer is Austria’s marathon record holder, a multiple national record holder on the roads, and an Olympian. Yet for much of her athletic life, running was not her primary sport.

For 16 years, she played soccer.

Then she discovered something that would change her life.

“I noticed that I was really fast in the fun runs and that it was really, really fun,” Mayer said when reflecting on her transition from soccer to distance running.

What began as curiosity quickly became a passion. She eventually made the bold decision to leave soccer behind and focus entirely on running. It was a move that surprised many people around her, but Mayer believed she had found her true athletic calling.

The decision proved to be the right one.

Within a few years, Mayer developed into one of Europe’s top marathon runners. Her steady improvement carried her from local races to the international stage, where she began rewriting Austria’s record books.

She now holds Austrian records in the marathon, half marathon, and road 10K. Her marathon best of 2:26:08 established her as the fastest female marathoner in Austrian history. Her performances in the half marathon and 10K have further cemented her place among the country’s all-time great distance runners.

Her rise culminated with qualification for the 2024 Olympic Games in Paris.

Competing in the Olympic marathon represented the realization of a dream. On one of the most challenging marathon courses ever used for the Olympics, Mayer ran courageously against the strongest field in the world and finished 55th in her Olympic debut.

Behind the scenes, success has come through extraordinary dedication. During marathon preparation, Mayer trains twice a day and covers approximately 200 kilometers, or 124 miles, each week. The workload demands discipline, patience, and a deep commitment to continuous improvement. 

What makes her story especially inspiring is not simply the records or the Olympic appearance.

It is the fact that she found her greatest talent later than many elite runners.

In a sport where athletes are often identified at a young age, Mayer’s journey serves as a reminder that potential does not always reveal itself early. Sometimes it takes years of experience, a willingness to try something new, and the courage to follow a different path. 

The former soccer player who once chased a ball across a field is now chasing history on the roads of Europe.

And according to those closest to her, her best performances may still be ahead.

For runners of every age and ability, Julia Mayer’s story delivers a powerful lesson: it is never too late to discover what you are capable of.

From soccer player to Olympian, her journey proves that remarkable achievements can begin when least expected.

Megan Keith produced the performance of her career in Oslo on Thursday night, shattering one of Scotland’s longest-standing distance running records and cementing her place among Britain’s greatest female 3000m runners.

The 24-year-old clocked a sensational 8:28.35 over 3000m, breaking the Scottish outdoor record that had stood for nearly four decades. In doing so, Keith eclipsed the previous mark of 8:29.02, set by Scottish legend Yvonne Murray back in 1988, ending a record reign that had lasted 38 years.

Keith’s breakthrough run was more than just a national record. The performance also propelled her to third on the UK outdoor all-time list, placing her behind only two of Britain’s most celebrated distance runners — Paula Radcliffe, who leads the rankings with 8:22.20, and Laura Weightman, whose 8:26.07 remains the second-fastest outdoor mark by a British woman.

The significance of Keith’s achievement is amplified by the calibre of athletes she now joins in the record books. For decades, Murray’s mark stood as one of Scottish athletics’ most untouchable records, surviving generations of elite competitors. Keith has now succeeded where many outstanding runners have fallen short, announcing herself as one of the leading distance talents in British athletics.

Her time also compares favourably with the best performances produced indoors. Olympic medallist Laura Muir ran 8:26.41 indoors in Karlsruhe in 2017, underlining just how exceptional Keith’s outdoor effort in Oslo truly was.

The run continues a remarkable rise for the Scottish star, whose progression over recent seasons has transformed her from a promising prospect into a genuine force on the international stage. Running with confidence and composure against elite competition, Keith demonstrated both the speed and endurance required to challenge the very best in Europe and beyond.

With the World Championship season gathering momentum, Keith’s record-breaking display sends a powerful message. Not only has she etched her name into Scottish athletics history, but she has also established herself as a serious contender in one of the sport’s most competitive events.

In Oslo, Megan Keith did far more than break a record. She ended a 38-year wait, climbed into the upper echelon of British distance running, and delivered a performance that may prove to be a defining moment in her career.

British middle-distance talent Phoebe Gill took another significant step forward in her return to top form, producing a determined victory over 800 metres at the Meeting de Marseille in France on Wednesday.

Competing in challenging, wind-affected conditions, the 19-year-old demonstrated both resilience and composure as she held off a late charge from Switzerland's Veronica Vancardo to secure the win in 2:00.81. Vancardo finished just three hundredths of a second behind in 2:00.84, underlining the fiercely contested nature of the race.

While the margin of victory was narrow, the result represented another encouraging milestone for Gill as she continues to rebuild momentum following her injury setback. The young Briton showed impressive race awareness and strength in the closing stages, maintaining her advantage despite the difficult conditions that made fast running a challenge throughout the evening.

The Marseille triumph adds to a growing body of evidence that Gill is steadily progressing toward her best form. Earlier in her comeback campaign, she clocked 2:01.50 for 800m in Bydgoszcz before demonstrating her versatility with a strong 4:05.53 performance over 1500 metres at the BMC Grand Prix meeting in Trafford.

Those performances have highlighted not only her improving fitness but also her ability to compete across multiple distances as she carefully builds her season. The Marseille victory now provides further confirmation that the European junior star is moving in the right direction.

Gill emerged as one of Britain's most exciting middle-distance prospects through a series of breakthrough performances as a teenager, earning widespread recognition for her fearless racing style and remarkable maturity. Injury temporarily interrupted that upward trajectory, but her recent results suggest she is steadily rediscovering the form that made her one of the sport's brightest young talents.

With each race, the signs of progress become increasingly evident. Winning in difficult conditions and under pressure from a quality field is often a stronger indicator than a fast time alone, and Gill's latest success demonstrated exactly those qualities.

As the summer season gathers pace, the Marseille victory offers another confidence boost for the British teenager, whose return continues to gain momentum. If her recent progression is any indication, Gill could soon find herself back among the leading names on the European middle-distance circuit. 

The NCAA Track and Field Championships delivered a moment few could have predicted as Ja’Kobe Tharp produced one of the most astonishing performances in the history of sprint hurdling, rewriting the record books in spectacular fashion.

Competing in the opening round of the men’s 110-meter hurdles, the Auburn star stunned the athletics world by clocking an incredible 12.75 seconds, becoming the first athlete ever to break the 12.80-second barrier. In doing so, he eclipsed the long-standing world record of 12.80 set by Aries Merritt in 2012, a mark that had stood as one of the sport’s most revered achievements for more than a decade.

What makes Tharp’s breakthrough even more remarkable is the scale of his improvement. Entering the championships, the defending NCAA and U.S. champion had recorded a season-best of 13.05 seconds. Yet under the brightest spotlight, he unleashed a performance that exceeded every expectation, slicing an extraordinary 0.26 seconds from his personal best in a race that instantly became one of the greatest ever run.

The achievement sent shockwaves throughout the track and field community. While Tharp arrived in Eugene as one of the leading contenders for the NCAA title, few envisioned a performance capable of redefining the limits of the event. Instead, the American hurdler delivered a race for the ages, combining flawless technique, explosive speed, and impeccable rhythm from the first hurdle to the finish line.

The historic run not only secured his place in athletics history but also transformed the outlook of the championship. With the world record now in his possession, Tharp advances to the final as the overwhelming favorite, carrying momentum that could make an already unforgettable weekend even more extraordinary.

For years, the 12.80 barrier appeared untouchable. On a stunning day at the NCAA Championships, Ja’Kobe Tharp proved otherwise, producing the kind of performance that reminds fans why sport remains so unpredictable. In a matter of seconds, he turned a routine qualifying round into a landmark moment that will be remembered for generations.

The world record no one saw coming is now a reality—and Ja’Kobe Tharp is the man who changed history.

A new chapter in middle-distance running may have begun in Oslo after American teenager Cooper Lutkenhaus produced one of the most remarkable performances of the season, narrowly defeating reigning Olympic champion Emmanuel Wanyonyi in a thrilling men's 800m contest at the Diamond League meeting.

The 17-year-old sensation shocked a world-class field by crossing the finish line first in a race that came down to the smallest of margins. After an intense battle over the final metres, Lutkenhaus held off Wanyonyi by just one hundredth of a second, producing a dramatic finish that left the packed stadium in disbelief.

From the opening lap, the pace was relentless as the leading contenders positioned themselves for a fierce showdown. As the athletes entered the home straight, Wanyonyi appeared poised to unleash his trademark finishing kick. However, Lutkenhaus refused to be intimidated, matching the Olympic champion stride for stride before producing a perfectly timed lean at the line to secure a historic victory.

The result marks a breakthrough moment for the young American, who continues to establish himself as one of the brightest talents in global athletics. Defeating an Olympic champion at a Diamond League event is a feat many athletes spend entire careers pursuing, yet Lutkenhaus achieved it before reaching adulthood.

For Wanyonyi, the narrow defeat does little to diminish his status as one of the world's premier 800m runners. The Kenyan once again demonstrated his exceptional class and competitiveness, pushing the race to a world-class standard and forcing his young rival to deliver the performance of a lifetime.

Beyond the result itself, the race offered a glimpse into what could become one of the sport's most exciting rivalries in the years ahead. With established stars and emerging talents now pushing each other to new heights, the men's 800m continues to evolve into one of athletics' most captivating events.

On a memorable night in Oslo, the spotlight belonged to Cooper Lutkenhaus. At just 17 years old, he stood toe-to-toe with an Olympic champion and emerged victorious, announcing himself to the athletics world in spectacular fashion.