Physical "Bad Effects"
Let's start with the body and see what "side effects" your "pleasure behavior" might bring... (some interesting ones)
Fatigue
Feels like running a marathon after each "workout", and all you want to do the next day at work/school is lie down.
Back Pain
Long-term incorrect posture, be careful of getting the brother version of 'mouse hand' and 'keyboard waist' at a young age - 'right hand waist'!
Psychological "Bad Effects"
Besides the body, psychological "side effects" cannot be ignored either! (Although it might be a bit exaggerated)
Time Wasting
Life is short, it should be used to create value, not to 'one-hand-edly get rich' in the bedroom.
Social Obstacles
Addicted to the virtual world, be careful of becoming 'socially phobic', wanting to escape when you see real people, only daring to interact with 'goddesses/gods' on the screen.
Other "Bad Effects"
There are also some "unexpected" "bad effects", you would never guess! (Actually, maybe you would)
Impact on Study/Work Efficiency
Always drowsy in class/at work, the mind is full of 'last night's highlight reel', seriously affecting study and work efficiency.
Missing Opportunities to Find a Partner
Self-sufficient in the bedroom every day, be careful of missing opportunities to communicate with the opposite sex, becoming 'single since birth' is not impossible.
Conclusion & "Gentle Reminder"
Finally, let's "seriously" summarize... (Actually, still kidding!)
Jerk-off is good, but don't overdo it! Just like potato chips, eat occasionally to satisfy your cravings, be careful of becoming a couch potato if you eat too much!
Instead of 'fighting alone' in the bedroom, it's better to 'team up and play games' with friends, experience real happiness!
Remember: Moderation in entertainment, healthy life! (Although this site is "roasting" it, but actually... moderation is key!)