Medicine, Psychology & Health

Contrary to popular belief, your brain doesn't rest during sleep. Many regions become even more active than when you're awake, working hard to consolidate memories, process emotions, and clean out toxins. This intense neural activity is why dreaming can be surprisingly exhausting work.

Standard thyroid tests miss a critical interaction. Vitamin A and iodine work together to regulate thyroid hormones, and a deficiency in both can mean iodine supplementation alone may worsen hypothyroidism. This vital nutritional synergy is not routinely screened. A balanced diet is key.

The term 'nootropic' is widely used for 'smart drugs,' but it lacks any official clinical or regulatory definition. Originally a narrow scientific term, it's now a broad marketing category for supplements and drugs, causing confusion and raising safety concerns about efficacy and safety.

Researchers have confirmed that the human body can produce its own morphine. This startling discovery was observed in cancerous nervous system tumour cells, which create trace amounts of the opioid, revealing a hidden biochemical pathway with potential implications for future medical research.

A groundbreaking 2025 study reveals a significant link between dental flossing and a lower risk of ischemic stroke. The findings highlight the critical connection between oral hygiene, systemic inflammation, and cardiovascular health, suggesting a simple habit can have profound benefits.