melatoninná

Melatoninná is a compound that plays a role in regulating sleep-wake cycles in many organisms. It is a hormone produced by the pineal gland, a small endocrine gland located in the brain. The production and release of melatonin are influenced by light exposure. Darkness stimulates melatonin production, while light inhibits it. This natural rhythm is known as the circadian rhythm.

Melatonin's primary function is to signal to the body that it is time to sleep. As darkness falls, melatonin levels rise, promoting drowsiness and preparing the body for rest. Conversely, when light is detected, melatonin production decreases, signaling wakefulness. This hormonal signaling helps synchronize the body's internal clock with the external environment.

In humans, melatonin is often used as a dietary supplement to help manage sleep disorders, such as insomnia. It is available over-the-counter in many countries. While generally considered safe for short-term use, the long-term effects and optimal dosages are still subjects of ongoing research. It's important to consult with a healthcare professional before starting any new supplement, including melatonin, to discuss potential benefits and risks. The effectiveness and appropriate use of melatonin can vary significantly among individuals.