By Rebuilt Performance Team · May 7, 2026 · 7 min read
You know the feeling: the alarm rings, and even though you've had enough sleep, you feel like you've been run over. Coffee only helps for a short time, and by the afternoon, a heavy tiredness sets in. If this becomes a constant state, it's time to act.
The good news: chronic fatigue and lack of energy are often not fate, but the result of controllable factors. In this article, we show you seven concrete strategies you can implement today to regain your energy.
Why do we constantly feel tired?
Constant tiredness rarely has just one cause. Usually, it's a combination of various factors that disrupt our energy balance. The most common causes include lack of sleep or poor sleep quality, a deficiency in important nutrients like iron, B vitamins, or vitamin C, chronic stress that constantly drains our energy reserves, and an unbalanced diet with too much sugar and processed foods.
Lack of exercise can paradoxically lead to more tiredness, as our body relies on regular activity to optimally regulate its energy metabolism. Dehydration, excessive caffeine consumption, and too little daylight are other factors that are often underestimated. The good news: most of these factors can be positively influenced with relatively simple means.
7 things you can do today to combat fatigue
1. Optimize your sleep rhythm
Sleep is the foundation for everything else. Go to bed and get up at the same time every day – even on weekends. Your body loves routine and adapts to it. Avoid screen time for at least an hour before bedtime, as the blue light from smartphones and laptops inhibits the production of the sleep hormone melatonin. Make sure your bedroom is cool (16-18°C), dark, and quiet. Even these simple adjustments can significantly improve your sleep quality.
2. Drink enough water
Dehydration is one of the most common and most underestimated causes of fatigue. A fluid loss of just two percent can noticeably impair your cognitive performance and energy level. Drink at least 2-3 liters of water throughout the day, more if you exercise or sweat. A good trick: start your day with a large glass of water, even before you reach for coffee. This directly compensates for nocturnal dehydration and gives your metabolism a gentle kickstart.
3. Move – even when you're tired
It sounds paradoxical, but exercise gives energy instead of taking it away. Even a 10-minute walk in the fresh air can banish your fatigue and improve your concentration. Regular exercise improves blood circulation, supplies your cells with more oxygen, and promotes the production of mitochondria – the powerhouses of your cells. You don't have to become a marathon runner right away: even 20-30 minutes of moderate activity daily make a huge difference. A combination of endurance and strength training is ideal.
4. Supply your body with essential nutrients
Fatigue can be a sign that your body is lacking important nutrients. Especially vitamin C, B vitamins, iron, magnesium, and zinc play a crucial role in your energy metabolism. Vitamin C has been shown to help reduce tiredness and fatigue and supports normal energy metabolism. In reality, however, very few people manage to eat the recommended amounts of vegetables and fruit daily.
Here, Pure Greens™ can be a practical solution. One serving provides you with a carefully balanced blend of spirulina, vitamin C, zinc, and ginger. Spirulina helps you feel more energetic, while zinc contributes to normal cognitive function. The special thing: unlike many other greens products, Pure Greens™ tastes like peach and raspberry – without the typical grassy taste. With over 3 million servings sold and 4.82 out of 5 stars from 553 reviews on Trustpilot, the product has already proven itself. One pack contains 30 servings, lasting for a whole month.
5. Reduce your sugar consumption
Sugar might give you a short energy boost, but it inevitably leads to the notorious "sugar crash." When your blood sugar level goes on a roller coaster, so does your energy. Avoid sugary snacks, soft drinks, and processed foods. Instead, opt for complex carbohydrates from whole grains, vegetables, and legumes, which keep your blood sugar level stable. Always combine carbohydrates with protein and healthy fats – this ensures slower digestion and a more even energy supply throughout the day.
6. Actively manage your stress
Chronic stress is a massive energy drainer. If you are constantly in stress mode, your body continuously produces cortisol and other stress hormones that deplete your energy reserves. Incorporate conscious relaxation breaks into your daily routine: meditation, breathing exercises, progressive muscle relaxation, or simply a few minutes in nature can work wonders. Social contacts, hobbies, and activities that bring you joy also help to lower stress levels. Learn to say no and set priorities – you can't do everything at once.
7. Focus on strategic daylight exposure
Light is one of the most important pacemakers for our circadian rhythm. Morning light signals your body that it's time to be awake and active. Try to get at least 10-15 minutes of daylight within the first hour of waking up – ideally outdoors, but a bright window also helps. This inhibits melatonin production and promotes cortisol secretion at the right time. In the evening, however, you should avoid bright light and dim your surroundings to avoid disturbing natural melatonin production. This simple rhythm can dramatically improve your energy and sleep quality.
Frequently Asked Questions (FAQ)
How long does it take until I feel more energized?
That depends heavily on the cause of your fatigue. Some measures, such as drinking enough water or taking a walk, can work within minutes to hours. Other changes, such as optimizing your sleep rhythm or improving your nutrient supply, take about 1-3 weeks until you notice significant differences. It is important that you implement several strategies simultaneously and give them time to work.
Can coffee help with fatigue or does it rather harm?
Coffee is a double-edged sword. In moderate amounts (2-3 cups a day) and at the right time, caffeine can certainly be helpful. It becomes problematic if you use coffee as a substitute for sleep or drink it in the afternoon and evening, as it then disturbs your sleep-wake rhythm. The half-life of caffeine is about 5-6 hours, so you should not drink coffee after 2 PM. Use coffee strategically, not as a crutch.
Should I see a doctor for chronic fatigue?
Yes, definitely. If your fatigue persists for more than 2-3 weeks despite sufficient sleep and a healthy lifestyle, you should seek medical advice. Chronic fatigue can be a symptom of various illnesses, such as an underactive thyroid, iron deficiency, vitamin D deficiency, depression, or other conditions. A blood test can detect many of these causes. The tips in this article do not replace a medical diagnosis but complement it.
How much sleep do I really need?
Most adults need 7-9 hours of sleep per night, although the ideal amount varies individually. More important than the pure duration of sleep, however, is sleep quality. Make sure you get enough deep sleep and REM phases. Signs of sufficient sleep are: you wake up without an alarm clock, feel awake and concentrated during the day, and don't need caffeine to function. If you regularly have an afternoon slump or sleep significantly longer on weekends than during the week, this is a sign of sleep deprivation.
Can supplements really reduce fatigue?
Supplements can be useful if there is a nutrient deficiency or your diet has certain gaps. Vitamin C has been shown to help reduce tiredness and fatigue and supports normal energy metabolism. Spirulina helps you feel more energetic, and zinc contributes to normal cognitive function. However, supplements are not a substitute for a balanced diet and a healthy lifestyle. They work best as a complement to the other measures described in this article.
What can I do about the afternoon slump?
The classic afternoon slump between 2 and 4 PM has several causes: a natural circadian dip in alertness, often exacerbated by a heavy lunch that requires a lot of energy for digestion. Effective countermeasures include: a lighter lunch with more vegetables and protein instead of white bread and pasta, a short 5-10 minute walk directly after lunch, if necessary a power nap of maximum 20 minutes (no longer, otherwise you'll be groggier), and drinking enough water. Avoid the reflex to immediately grab coffee or sugar – that only leads to the next slump.
What role does gut health play in fatigue?
The connection between gut and energy is stronger than many think. A healthy gut can absorb and process nutrients efficiently. Ginger helps support digestion, which in turn helps your body get more energy from food. A balanced diet with plenty of fiber, fermented foods, and enough water supports your gut health. If you regularly experience bloating, fullness, or digestive problems, this can also affect your energy levels.
Summary: Your Energy Checklist
- ✅ Regular sleep rhythm – go to bed and wake up at the same time every day
- ✅ Drink enough water – at least 2-3 liters daily
- ✅ Exercise daily – even 10-20 minutes walk helps
- ✅ Keep an eye on nutrients – Vitamin C, Zinc, Spirulina for energy metabolism
- ✅ Reduce sugar – prefer complex carbohydrates
- ✅ Actively manage stress – plan breaks, use relaxation techniques
- ✅ Morning daylight – first 15 minutes outdoors or by the window
- ✅ For persistent fatigue: see a doctor and get a blood test
* These statements have been evaluated by the European Food Safety Authority (EFSA). Pure Greens™ is not a medicine and is not intended to treat, cure, or prevent diseases. Food supplements are not a substitute for a balanced diet and a healthy lifestyle. The recommended daily dose should not be exceeded. Keep out of reach of children.
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The content on this page is for informational purposes only and does not replace professional medical advice, diagnosis, or treatment. Always consult your doctor or qualified healthcare professional with any questions about illnesses or health complaints.
Pure Greens is a food supplement. Food supplements are not a substitute for a balanced and varied diet and a healthy lifestyle. The stated recommended daily intake (1 scoop = 11 g) must not be exceeded. Keep out of reach of children under 3 years. Pregnant women, breastfeeding mothers, and individuals with known medical conditions should consult their doctor before consumption. Store in a cool, dry place.
The health claims used are approved by the EU/EFSA and relate to specific ingredients of the product: Vitamin A and Vitamin C contribute to the normal function of the immune system, Zinc contributes to normal cognitive function, and inulin from chicory supports digestion. Allergens: contains wheat, barley (celiac disease) and naturally occurring sulfites from spirulina.
Against lack of energy: the right daily basis
You have just read what helps with persistent fatigue and lack of energy. This is exactly where Pure Greens comes in: one scoop in the morning provides Vitamin C, which contributes to the reduction of tiredness and fatigue and to normal energy metabolism, plus 13 carefully selected ingredients.
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