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Do you know that feeling when you're simultaneously tired and energized, irritable yet exhausted – and you think, "Something's just not in balance" ? That's exactly where neurotransmitters come in. They're the tiny, invisible messengers that determine whether we jump out of bed motivated in the morning or whether the snooze button winks at us three times. Whether we stay cool in a meeting or explode at the slightest bit of stress. Whether we lean back contentedly after a long day – or whether our thoughts keep racing.

Tryptophan is more than just a protein building block – it's the raw material for serotonin and melatonin, which are essential for a good mood and restful sleep. Learn why this lab value is so important, what symptoms indicate an imbalance, and how diet, lifestyle, and modern laboratory diagnostics (e.g., at ORY Berlin) can help.