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We invited Hynk Medřický, an expert on light, to tell us more about how to approach light hygiene. Hynka was interviewed by @jirkakral. You will learn how to protect yourself from dangerous light, how it needs to be reduced before sleep and other interesting facts about how light works at all! ???? 0:00 Hynek i Be safe online on TikTok! 2:52 Blue light 5:43 We measure blue light 6:44 How does blue light affect the human body? 11:22 Is sleep important? 16:40 How to properly divide your day? 23:05 How to defend against blue light? 24:32 Is the sun red? 29:15 When to use blue light blocking? 31:36 What is melatonin? 34:35 What does Hynk's evening look like? 37:40 LEDs 39:50 "Is it blue even in the moon?" ► If you would like to know more about how to be safe on the net, take a look at our online course! ???? CZ version: https://bit.ly/kurz-cz-tipy SK version: https://bit.ly/kurz-svk-tipy ► Follow us on Instagram: / bud.safe.online ► You can also find us on TikTok: / bud.safe.online You can also report anything suspicious you come across on the Czech and Slovak internet to us on Instagram. We will check it and possibly include it in other security news! ????✔️