SEASONAL AFFECTIVE DISORDER (SAD)
LIGHT THERAPY
10 mins

How to Stop Feeling Tired in Winter

Written by AYO Team

AYO is the World's First Circadian Health Wearable. Sleep Better, Boost Energy, Embrace Wellness!

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Table of contents

Key Takeaways

  • Winter tiredness stems from lack of sunlight disrupting your circadian rhythm. Light therapy glasses provide targeted morning light while you move freely through your routine.
  • Daily use of light therapy for 15-30 minutes, combined with regular sleep and wake times, produces better results than sporadic efforts or oversleeping.
  • Pair light exposure with late afternoon exercise, balanced meals with protein and vegetables, and consistent sleep habits for maximum energy improvement.

Do you ever feel like you're more tired in winter? You're not imagining it.

When the days get shorter and mornings stay dark, your energy disappears.

You hit snooze multiple times.

You struggle to focus at work. By evening, you're too drained to do anything but collapse on the couch.

The real issue is light, or the lack of it.

Reduced sunlight disrupts your body's internal clock, triggering excessive melatonin production that keeps you feeling foggy all day.

Your brain literally can't tell when it's time to be awake.

This article explains why winter saps your energy, how to use light exposure (natural and artificial) to reset your system, and the practical strategies that keep fatigue at bay.

Did you know?
Studies show that most people notice improved symptoms within one week of starting daily light therapy.

Why Winter Makes You Tired

Your brain relies on light to regulate your sleep-wake cycle.

When sunlight enters your eyes, it signals your brain to stop producing melatonin and start producing cortisol and serotonin, hormones that keep you alert and improve your mood.

In winter, you might leave for work in the dark and come home in the dark.

Your brain never gets that clear "wake up" signal. It continues to produce melatonin throughout the day, leaving you in a perpetual state of drowsiness.

The problem compounds because less sun exposure also means less vitamin D production.

Low vitamin D levels are associated with fatigue and a low mood.

Your body's internal clock, which typically operates on a roughly 24-hour cycle, begins to drift without regular light cues to keep it synchronized.

This isn't weakness or laziness. It's a biological response to your environment. Humans evolved in climates where seasonal changes significantly impacted their activity levels.

Your body is doing exactly what it's programmed to do; the issue is that modern life requires consistent energy year-round and sudden changes in schedule.

Maximize Natural Light Exposure

woman with winter hat on

Natural sunlight remains the most powerful tool for regulating your energy levels.

Even on cloudy winter days, outdoor light is significantly brighter than indoor lighting, up to 10 times stronger.

Get outside within an hour of waking up, even for just 10 to 15 minutes.

Morning light is particularly effective at resetting your circadian rhythm and suppressing the production of melatonin. A quick walk around the block, standing outside with your coffee, or parking farther from your office entrance all work.

If you work indoors, position your desk near a window for optimal lighting.

Facing a window gives you constant light exposure throughout the day. If that's not possible, take regular breaks outside. A 15-minute lunch walk does more for your energy than scrolling on your phone in the break room.

Open your curtains and blinds as soon as you wake up.

Let light flood your home before you even get out of bed. This simple habit signals your brain that it's time to transition from sleep mode to wake mode.

On weekends, resist the urge to stay inside. Winter hiking, outdoor markets, or simply walking gives you the light exposure your body craves.

The key is consistency, your brain needs regular light cues to maintain a stable rhythm.

Did you know?
In northern cities during winter, nearly 50% of people have insufficient vitamin D levels and 25% are considered deficient.

Light Therapy: A Proven Solution

Light therapy delivers concentrated bright light that compensates for the lack of natural sunlight in winter.

It's not just feel-good advice, clinical studies show it effectively reduces fatigue and improves alertness by regulating your melatonin production.

A light therapy device emits bright light (typically up the equivalent of 10,000 lux) that mimics the light of a sunny day outdoors.

When this light enters your eyes, it triggers the same biological response as natural sunlight: your brain stops producing melatonin and starts producing the hormones that keep you alert.

Light therapy glasses, for example, offer a practical solution for most people.

They're wearable devices with LED lights built into the frames that direct light into your eyes.

You can move around, make breakfast, get ready for work, or do household tasks while using them.

Use light therapy in the morning, ideally within the first hour after waking.

Start with 15 to 20 minutes and adjust the time as needed based on how you feel. Some people need 30 minutes for the full effect.

Optimize Your Sleep Schedule

Light therapy works best when paired with consistent sleep habits.

Your circadian rhythm thrives on regularity, and winter makes it easier for your schedule to drift.

Go to bed and wake up at the same time every day, including weekends. This consistency reinforces the rhythm you're establishing with light exposure. Sleeping in on Saturday might feel good temporarily, but it disrupts your progress and makes Monday morning harder.

You need about eight hours of sleep, not more.

When winter hits, many people assume they need extra sleep because they feel tired. The opposite is typically true.

Oversleeping makes you groggier and weakens your sleep drive for the following night.

Stick to your eight hours and resist the urge to hibernate.

Keep it dark at night using blackout curtains or an eye mask.

Remove screens at least 30 minutes before bed, as blue light from phones and tablets can suppress melatonin production when you actually need it.

Create a simple wind-down routine. You can read, stretch, or listen to calm music before going to bed.

Your brain needs a transition period between the day's activities and sleep. Jumping straight from work emails to bed rarely works well.

If you wake up tired despite getting adequate sleep, your sleep quality may be the issue.

Common disruptors include alcohol (which fragments sleep), late caffeine consumption, and an uncomfortable mattress.

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