Journal #33. Why stress can make everything feel overwhelming.
Why stress can make everything feel overwhelming
Stress is a normal part of life. It can arise from work, relationships, health, finances, caregiving, uncertainty or simply having too many demands competing for your attention.
In short bursts, stress can be useful. It helps you respond to a challenge, meet a deadline or take action when something needs your attention.
But when stress becomes constant, it can start to affect how you think, feel and function. Tasks may feel harder than they should. Your mind may race, your patience may shorten and even small decisions can feel disproportionately difficult.
Understanding why this happens can help you respond with more awareness and practical support.
The body’s stress response
When your brain detects a threat or high demand, it activates a coordinated stress response.
This involves the nervous system and hormones such as cortisol and adrenaline. Your heart rate may rise, your muscles may tense and your attention may narrow. The body is preparing you to act.
This response is often called “fight, flight or freeze.” It is designed for short-term challenges, not for a calendar full of deadlines, constant notifications or weeks of poor sleep.
When the system remains activated for too long, it can become harder to switch off.
The amygdala and the stress alarm
The amygdala is a small structure in the brain involved in processing emotional information, including potential threats.
When you are under pressure, the amygdala can become more alert to frustration, criticism, uncertainty or conflict. This can make ordinary situations feel more urgent or emotionally charged than they otherwise would.
That does not mean you are overreacting on purpose. It means your brain may be prioritising protection over perspective.
Why clear thinking becomes harder
The prefrontal cortex is involved in planning, decision-making, attention, impulse control and emotional regulation.
During periods of high stress, those functions can feel less available. You may find it harder to prioritise, remember details, make decisions or pause before responding.
This is one reason overwhelm can feel so physical. You are not simply dealing with a long list of tasks; you may be trying to manage them with less mental capacity than usual.
Stress, sleep and mental load
Stress can make it harder to fall asleep, stay asleep or wake feeling restored. Poor sleep then reduces concentration, emotional regulation and stress tolerance the next day.
This can create a difficult cycle:
More stress → poorer sleep → less capacity → greater overwhelm.
The goal is not to eliminate all stress. It is to build enough recovery into your routine that the stress response does not become your default state.
What about neuroinflammation?
Researchers are continuing to explore the relationship between chronic stress, immune activity and inflammatory processes in the brain and body.
This is an important but complex area of science. Stress, fatigue, brain fog and anxiety do not automatically mean someone has neuroinflammation, and it cannot be diagnosed from symptoms alone.
The practical takeaway is that prolonged stress can affect multiple systems at once — mood, sleep, attention, memory, energy and physical health. That is why a whole-of-life approach is often more helpful than looking for one explanation.
Practical ways to reduce overwhelm
You do not need to overhaul your life to create more capacity. Start with the habits that help your nervous system move out of constant alertness.
- Slow your breathing. A few minutes of slower breathing, with a longer exhale, can help create a sense of calm.
- Move your body. Walking, stretching, strength work or any regular movement can support mood, sleep and stress recovery.
- Reduce task-switching. Choose one priority, silence notifications and give it your attention for ten minutes.
- Protect sleep. A consistent wake-up time and a simple wind-down routine can make a meaningful difference.
- Talk to someone. Connection can provide perspective and reduce the sense that you need to carry everything alone.
- Seek professional support early. If stress, anxiety, low mood or overwhelm is persistent or affecting daily life, a GP, psychologist or counsellor can help.
Support your cognitive performance
Cognitive performance is not about staying productive at all costs. It is about having the capacity to focus, recover and respond with more steadiness when life gets demanding.
For people looking for additional support, Brain Health was developed by Natural Medicine Neuroscientist Megan Wilks and has been trusted by practitioners since 2015. Its botanical formulation includes selected flavonoid-rich extracts designed to support cognitive function, mental clarity, healthy mood balance and everyday brain resilience.
Brain Health is intended to complement healthy lifestyle habits. It is not intended to diagnose, treat or replace professional care for stress, anxiety, depression or other medical conditions.
