Why You’re More Tired After the Time Change (and What Helps)
One of fall's strangest annual events doesn’t require tickets, costumes, or even leaving the house. In fact, it happens while most of us are sleeping.
Every November, clocks across the country “fall back” by one hour, marking the end of daylight saving time. We gain an extra hour of sleep...so why do we often wind up feeling more tired?
If you've ever wondered why the time change leaves you feeling sluggish, distracted or fending off afternoon energy crashes, there’s a simple scientific explanation. The body’s built-in clock — also known as your circadian rhythm — takes its cues from sunlight, not smartphones or wall calendars. Although the time changes by only one hour, the body’s internal rhythms typically need a few days to adjust.
Fortunately, a few simple habits can help make the seasonal transition easier so you can spend less time fighting fatigue and more time enjoying everything fall has to offer.
"Our bodies thrive on consistency. Even small disruptions to our normal sleep and wake schedule can temporarily affect energy, mood, and concentration, but healthy daily routines can help us adapt more quickly." – Cassandra Howard, MD, at Methodist Le Bonheur Healthcare
Why one hour can feel like much more
Sixty minutes doesn’t seem like it should make that much difference — but in reality, the brain uses daylight as one of its primary cues to gauge time. So when sunset suddenly arrives earlier and the morning light shifts, your internal clock has to recalibrate when it's time to wake up, feel alert, and prepare for sleep. For some people, that adjustment is barely noticeable. For others, the time change may temporarily affect:
- Energy levels
- Sleep quality
- Mood
- Focus and concentration
- Motivation to stay active
Thankfully, these effects are usually short-lived, and Healthier 901 has some practical tips to help your body settle into its new rhythm.
Begin your day with natural light
One of the best ways to reset your internal clock is surprisingly simple: spend time outside as soon as possible after you wake up.
Morning sunlight signals to your brain that it's time to be alert, helping regulate the hormones that control both energy and sleep. Even 15 to 30 minutes of morning light—whether you're walking the dog, drinking your coffee on the porch or fitting in a quick strength-training session before work—can help your body adjust more quickly.
Timely tip: If mornings feel rushed, consider spending part of your lunch break outdoors. A short walk offers the added bonus of physical activity, plus the benefits of soaking up a little natural daylight.
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SUBSCRIBE NOWKeep moving — even when you don’t feel like it
When you're feeling groggy or a little “off,” skipping your workout can be tempting. Ironically, movement is often exactly what your body needs in those moments.
Regular physical activity improves circulation, boosts mood, supports better sleep, and helps reduce daytime fatigue. You don't have to tackle an intense workout, either. A brisk walk, bike ride, yoga session, or even a few minutes of stretching can help give your energy a reboot.
Timely tip: As the days get shorter, consider moving outdoor workouts a little earlier while there's still daylight — or get creative with indoor workouts when the weather or darkness makes staying inside more appealing.
Give your sleep schedule a little consistency
The days surrounding the time change probably aren't the ideal time to binge-watch "just one more episode" until midnight.
Going to bed and waking up at roughly the same time each day — even on weekends — will help your body adjust to the change more quickly. Creating a relaxing bedtime routine, limiting screens before bed and keeping your bedroom cool, quiet, and dark can also support better sleep.
Timely tip: Consistency matters more than perfection.
Go easy on yourself
Perhaps the most important reminder is this: it's okay — and also completely normal — if you don't feel like yourself for a few days.
Just as it takes time to adjust after traveling across time zones, your body may need several days to adapt to a new schedule. Instead of trying to overhaul your routine, focus on the basics: move your body, nourish yourself well, spend time outdoors, stay hydrated, and prioritize sleep. Those simple habits will support your energy no matter what the calendar — or the clock — says.
"During seasonal change, the routines that matter most are often the simplest ones: consistent sleep, regular movement, nutritious meals, and time spent outdoors. The best healthy habits are the ones we can maintain in times of transition.” – Cassandra Howard, MD, at Methodist Le Bonheur Healthcare
Healthy habits don’t reset overnight
The clocks may change overnight, but your healthy habits don't have to.
If the shorter days leave you feeling a little less energetic this fall, know that you're not alone — and that your body will likely adjust with a little time and consistency. Small choices, repeated day after day, can help you maintain your energy long after the time change is behind you.
Whether you're taking a morning walk, trying a free on-demand workout, joining a wellness challenge, or simply making time for a little extra movement each day, Healthier 901 is here to help you build healthy habits that last through every season.