* Kryptonite: This radioactive element from Superman's home planet Krypton weakens and eventually kills him.
* Magic: While Superman is incredibly powerful, he is vulnerable to magic.
* Red Sun Radiation: Superman's powers come from the yellow sun of Earth. Exposure to red sun radiation weakens him significantly.
* Vulnerability to Extreme Temperatures: Superman is vulnerable to extreme cold and heat.
* Psychic Attacks: Powerful telepaths can affect Superman's mind.
* Mind Control: Superman can be mind-controlled, though this is rare.
There are also several lesser-known weaknesses, like:
* High-Frequency Sounds: Some stories have suggested that Superman is vulnerable to high-frequency sounds, although this is not always consistent.
* Extreme Physical Force: While incredibly strong, Superman is not invincible and can be injured by powerful physical attacks.
It's important to note that Superman's weaknesses and how they affect him vary depending on the story and the writer. However, the above are the most commonly used and well-known vulnerabilities.