NL Clinic Blog
Cortisol: Your Body’s Built-In Alarm System
02 May 2025
Cortisol is often called the “stress hormone,” but it’s so much more than that. Produced by your adrenal glands, cortisol helps regulate your energy levels, immune response, blood pressure, blood sugar, and even sleep-wake cycles. It’s the hormone that prepares your body to respond to stress — think of it as the gas pedal when you need to act fast.
Read moreWhy 20–30 Year Olds Should Have a Full Blood Count Test
01 May 2025
our 20s are often seen as the healthiest decade of life—an era of high energy, independence, and growth. While you may feel invincible, it’s also the perfect time to start building habits that support long-term health. One often-overlooked step? Getting a Full Blood Count (FBC) test. Here’s why it’s relevant—even vital—for people in their 20s.
Read moreThe Ultimate Guide to Thyroid Blood Tests: TSH, Free T3, and Free T4 Explained
01 May 2025
When you’re feeling tired, gaining weight for no clear reason, battling brain fog, or just sensing that something’s “off” in your body, the thyroid is often the hidden culprit. Yet, standard testing often misses the full story.
Read moreFree T4 (Thyroxine): The Storage Hormone That Feeds the Fire
30 Apr 2025
Free T4 (free thyroxine) is the main hormone produced by your thyroid gland. It acts as a storage form of thyroid hormone, which must be converted into T3—the active form—to be used by your body. Think of Free T4 as the fuel in your tank, while Free T3 is the spark in your engine.
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