What is a 'Z-Score'. A Z-score is a numerical measurement of a value's relationship to the mean in a group of values. If a Z-score is 0, it represents the score is identical to the mean score. Z-scores may also be positive or negative, with a positive value indicating the score is above the mean and a negative score indicating it is below the mean.
The pineal gland, also known as the pineal body, is an important endocrine gland that produces the hormone melatonin. Melatonin plays a key role in the sleep/wake cycle and the bodyâs response to sunlight. The pineal gland is a small, pinecone-shaped mass of glandular tissue about 1/3 of an inch (8 mm) long.
Works with the body's natural cycle to safely and gently promote sleep. All of us produce the hormone melatonin naturally in our brains. It helps set sleep and wake cycles in humans, animals, and even plants and fungi. The amount of melatonin your body produces varies throughout the day and is based on its exposure to light. Darkness makes the body produce more melatonin, which induces sleep, while light suppresses its production. We include melatonin in a handful of our products to help gently promote sleep.