I'm sorry to hear that your iPhone 15 is overheating. Overheating can be caused by various factors, such as running resource-intensive apps, high ambient temperatures, or a malfunctioning component. To address this issue:
1. Close any background apps: Make sure you're not running too many apps simultaneously.
2. Check for software updates: Ensure your iOS is up to date, as updates may include bug fixes.
3. Remove your phone case: A thick case can trap heat, so consider removing it.
4. Avoid direct sunlight: Keep your iPhone out of direct sunlight.
5. Restart your iPhone: A simple restart can sometimes resolve overheating issues.
6. Reset settings: You can try resetting all settings in the "Settings" app.
7. Monitor battery health: In "Settings" > "Battery" > "Battery Health," check the maximum capacity. If it's significantly degraded, it might be contributing to the issue.
If the problem persists, consider contacting Apple Support or visiting an Apple Store for further assistance.