What Is the Pineal Gland? A Beginner's Guide to Circadian Rhythm
If you've spent any time exploring sleep and wellness content lately, you've probably come across the term "pineal gland." It shows up in everything from science articles to wellness routines — but most explanations either get too technical or too vague to actually be useful. Here's a simple, honest look at what the pineal gland is, how it relates to your body's internal clock, and why it's become such a common topic in evening wellness routines. What the Pineal Gland Actually Is The pineal gland is a small, pea-sized structure located near the center of the brain. Its main, well-established role is producing melatonin — a hormone that helps regulate your sleep-wake cycle, also known as your circadian rhythm. Think of your circadian rhythm as your body's internal 24-hour clock. It influences when you naturally feel alert and when you start to feel sleepy, largely based on light exposure. As it gets darker in the evening, the pineal gland increases mela...
