The Thyroid Gland: Why It Matters

When it comes to our health, there are a few small but mighty organs that often go unnoticed until something goes wrong. The thyroid gland is one of them. Tucked neatly at the front of your neck, this butterfly-shaped gland plays a vital role in keeping your body running smoothly.

What is the Thyroid Gland?

The thyroid gland is part of the endocrine system — a network of glands that produce and release hormones. And despite its small size, it has a big impact on how your body works.

Its main job? To produce hormones that regulate your metabolism — the process by which your body converts food into energy. In other words, it helps control how fast or slow your body works.

What Does the Thyroid Do?

The thyroid produces two key hormones:

• Thyroxine (T4)

• Triiodothyronine (T3)

These hormones influence almost every cell in your body, helping to control:

• Heart rate

• Body temperature

• Weight

• Energy levels

• Digestive function

• Mood and brain function

The gland’s activity is regulated by the pituitary gland in the brain, which releases thyroid-stimulating hormone (TSH) to tell the thyroid when to speed up or slow down.

When the Thyroid Isn’t Working Properly

If the thyroid makes too much hormone, the condition is called hyperthyroidism. If it makes too little, it’s called hypothyroidism. Both can lead to a range of symptoms.

Common Symptoms of Hyperthyroidism (overactive thyroid):

• Unexplained weight loss

• Rapid or irregular heartbeat

• Feeling anxious or irritable

• Increased sweating

• Difficulty sleeping

• Tremors (shaking hands or fingers)

Common Symptoms of Hypothyroidism (underactive thyroid):

• Unexplained weight gain

• Fatigue and low energy

• Feeling cold more often

• Dry skin and hair

• Slow heart rate

• Depression or low mood

• Constipation

• Irregular/heavy periods

Symptoms can develop gradually, and sometimes they may be mistaken for other health issues — especially in the early stages.

Why Thyroid Health Matters

Because the thyroid influences so many body systems, even slight changes in its function can have a big impact on overall well-being. Early diagnosis and treatment — whether with medication, lifestyle changes, or other medical approaches — can make a huge difference.

If you notice persistent changes in your weight, energy levels, mood, or heart rate, it’s worth speaking to your GP or a functional medical practitioner with your concerns. A simple blood test to check your thyroid hormone levels can quickly confirm whether your thyroid is functioning as it should.

I can recommend a blood test for a full thyroid blood panel, including antibodies (to check for Hashimoto's autoimmune disease) in clinic. Book a Discovery call today, via the website, to find out more

Book Here

In Summary:The thyroid gland may be small, but it is a powerhouse of hormonal activity. From regulating your metabolism to keeping your heart and brain in check, it’s a true multitasker. Understanding its role — and recognising the signs when it’s not working properly — is an important step in taking charge of your health.