Patients often describe it as a loop they cannot find the start of. They sleep badly because they are anxious, and they are more anxious because they have slept badly. By the time they seek help, it is no longer clear which came first — and, in practice, it rarely matters as much as they think.
What matters is that both sides are assessed, and that the body is included in that assessment rather than treated as a separate question.
A loop, not a line
Anxiety is not only a feeling. It is a state of physiological readiness: a faster heart rate, heightened alertness, stress hormones that prepare the body to act. That state is useful in short bursts. At night, it is the opposite of what sleep requires.
Sleep, in turn, is when the brain recalibrates its response to stress. After poor sleep, the parts of the brain that detect threat become more reactive and the parts that regulate them less effective. The same day feels harder to manage, and the next night begins with more to switch off.
Psychological causes and physical ones are not in competition. Both deserve assessment.
Where the body comes in
A number of physical conditions present as anxiety, disrupted sleep, or both. They are common, they are identifiable, and most are treatable. They are also easily missed when symptoms are assumed to be purely psychological.
- Thyroid function An overactive thyroid can produce a racing heart, restlessness and poor sleep that closely resemble anxiety.
- Hormonal transition Perimenopause commonly brings early waking and a new, unfamiliar anxiety. Low testosterone affects mood and sleep in men.
- Iron and nutrition Iron deficiency is linked to restless legs and fragmented sleep, as well as low energy and mood.
- Sleep apnoea Interrupted breathing fragments sleep and can leave people waking unrefreshed and on edge.
- Stimulants and medication Caffeine, alcohol and a number of common prescriptions affect both anxiety and sleep architecture.
Looking for these is not a suggestion that symptoms are physical rather than psychological. It is that both deserve assessment before either is concluded.
Why treating one side often stalls
A sleeping tablet can help in the short term, but if anxiety is driving the wakefulness, the effect fades and the anxiety remains. Equally, anxiety treatment can be slowed considerably by sleep that is still fragmented — especially if an underlying cause such as apnoea or a hormonal change was never identified.
This is the most common pattern we see in patients who say previous treatment did not work. Often the treatment was reasonable. It simply addressed one half of a two-way problem.
What a joined-up assessment involves
At Lavora, this concern is held by Mental Health & Brain Health. It begins with an unhurried psychiatric consultation covering history, symptoms and anything that has already been tried. Sleep is reviewed in its own right, including screening for apnoea where the history suggests it. Where it is warranted, a physical screen looks at thyroid, iron, metabolic and hormonal markers in parallel, not afterwards.
Treatment follows from what is found. Options may include structured psychological approaches for sleep and anxiety, psychological therapy, medication where it is appropriate, or treatment of a physical contributor. Neuromodulation is one further capability, used only for specific, clinically indicated presentations. Review points are set from the start, so progress is measured rather than assumed.
Small changes that genuinely help
These are not a cure, and they are not a reason to delay assessment. But they reduce the load on the loop while the cause is being established.
In short
- Anxiety and sleep feed each other; both sides of the loop need attention.
- Thyroid, hormonal, nutritional and sleep-breathing problems commonly present as anxiety or insomnia.
- When treatment has stalled, an assessment that includes the body is often what has been missing.
