Illustration the cycle of a person's biological clock. Ideal for visual communication and institutional material premium vector by Lcosmo

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vector round graphic illustration design isolated day sign art morning cute health procedure silhouette cartoon dusk symbol elements concept icon night rest figure traditional system quality routine schedule symbols afternoon pictogram mascot disturbance period synchronize insomnia institutional wake up biological clock melatonin pineal gland neuroendocrine suprachiasmatic chronobiology design style sleep cycle circadian clock sleep hygiene

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