Why is laser harmful?

Lasers can be harmful due to their concentrated energy, which can cause damage to the skin and eyes. Exposure to high-intensity laser beams can lead to burns or permanent eye injury, including blindness, if proper safety precautions are not taken. Additionally, certain wavelengths can penetrate deeper into tissues, increasing the risk of injury. It's essential to use lasers with caution and follow safety guidelines to mitigate these risks.