Focus
Well-being

Why Does Focus Sometimes Feel So Difficult? Common Causes Explained

Valerie Tsang
Jul 22, 2026
5
min read

Focus and concentration can become more difficult when basic needs like food, water, and rest aren't being met. What feels like distraction, forgetfulness, or brain fog isn't always a motivation problem. Sometimes, it's a sign that your mind and body need support.

You might notice it first in small ways. You wake up tired and assume you did not sleep well. By lunch, you are rereading emails because the information is not sticking. You walk into another room and forget why you went there. Someone asks you a question, and it takes a moment longer than usual to organize your thoughts.

When our concentration changes, many of us assume we're stressed, distracted, or simply not trying hard enough. It can take longer to recognize that something more basic, like food, water, or rest, might also be contributing.

Yet concentration depends on more than attention alone. Research suggests that what we eat plays an important role in how our brain learns, remembers information, and functions day to day.

Psychologist Abraham Maslow proposed that human needs build on one another, with physiological needs forming part of the foundation for higher-order functioning.

While human behaviour is more complex than any single model can explain, Maslow’s idea highlights something important: the mind does not operate separately from the needs that support it.

Difficulty focusing is not always a sign that something is wrong. Attention is shaped by many factors, and one of them is whether your brain has access to the resources it needs to function well.

In this blog, we’ll explore:

  • What focus can tell us about unmet needs
  • The connection between food, hydration, and mental clarity
  • What researchers are learning about nourishment and brain health
  • Why brain fog is not always a sign that something is wrong

Before you read: What we share here draws on research and clinical insight, but it may not resonate with everyone or fit every situation. That is okay. If you are looking for additional support, you might consider reaching out to a trusted professional or connecting with our team at contact@layla.care 

What Changes in Focus Can Tell Us

One challenge with basic needs is that we don't notice them right away. Sometimes we become aware of their effects before we recognize what’s contributing to them.

Take hydration as an example. Research suggests that dehydration can affect attention, concentration, and mood, although the effects vary depending on the degree of dehydration and the individual (Wittbrodt & Millard-Stafford, 2018).

Hydration illustrates a broader idea: when our thinking feels different than usual, it can be worth considering whether our body is asking for something before assuming the problem is a lack of motivation or focus.

Food can work in a similar way. Feeling more tired, irritable, or mentally drained may reflect many different factors, and one of them may be that your body needs nourishment. Looking at the bigger picture can make it easier to consider possibilities beyond simply trying to focus harder.

The value of understanding these connections isn't that they explain every focus problem. Rather, they remind us that changes in concentration can have many different causes. Stress, poor sleep, emotional health, hydration, and nourishment can all play a role, and understanding the context often gives us a clearer picture than assuming there's a single explanation.

Looking Beyond Superfoods

When researchers study food and brain health, they rarely find a single ingredient responsible for the outcome. Instead, certain foods appear repeatedly across studies looking at cognitive health and mental functioning.

Leafy greens are one example. They are a central part of the MIND diet – a pattern of eating developed around foods linked to brain health developed by nutritional epidemiologist Dr. Martha Clare Morris. Research has found that greater adherence to the MIND diet was associated with a lower risk of developing Alzheimer's disease.

It’s not just leafy greens. 

Berries appear frequently as well. They contain compounds called flavonoids, naturally found in foods such as blueberries, strawberries, cocoa, and tea. Reviews of the evidence suggest flavonoids may support aspects of cognitive function, including attention, memory, and executive functioning.

Mediterranean-style of eating, which often includes foods such as olive oil, nuts, seeds, fish, vegetables, and legumes, has also been widely studied in relation to brain health.

Taken together, these findings point toward a broader pattern. Rather than identifying a single "brain food," research tends to suggest that overall patterns of eating are more closely associated with brain health than any one ingredient. That doesn't mean these foods guarantee better concentration, but it does suggest that consistent, varied eating patterns may matter more than quick fixes.

Layla’s Takeaway Tips

Changes in concentration don't always point to a single explanation. While food and hydration are only part of the picture, they are part of it, alongside factors like sleep, stress, and emotional health.

Research continues to explore how these everyday factors influence cognitive function. Although there isn't a single food or habit that guarantees better focus, consistently meeting our basic needs can help support how our brain functions over time.

When thinking feels harder than usual, it can be worth considering the broader context before assuming it's simply a lack of motivation or effort.

A Message from Layla

If you are looking for additional support, you might consider reaching out to a trusted professional or exploring our crisis and community resources. If you are in immediate distress or need urgent support, please seek support from a local crisis service. In Canada, you can also call or text 988 for immediate support. If you would like help finding support that feels right for you, our team is here to assist. You can reach us at contact@layla.care or complete our intake form to connect with a member of our care team.

Valerie Tsang image
Valerie Tsang
Clinical Program Manager
Valerie is a Registered Psychotherapist who has worked for more than a decade in community mental health.