How does light affect us? Are LED panels really good?

How should we design lighting to create a sustainable work environment? Light affects us in various ways. An inadequate visual environment can cause headaches, eye strain, and neck pain. So, how should we approach designing the right lighting? LED panels and other types of high-intensity fixtures often cause glare, which can negatively impact us. Another issue is non-visual flicker or temporal light modulation (TLM), which has a proven negative effect on our brain activity.