10 Harmful Habits That We Just Can’t Quit

For better or for worse, scientists say it’s human nature to partake in unhealthy activities.

By Donna Sarkar
Mar 14, 2022 9:00 PMMar 14, 2022 9:10 PM
self-destructive
(Credit: Denis Belyaevskiy/Shutterstock)

Newsletter

Sign up for our email newsletter for the latest science news
 

Humans seem to have an appetite for self-destruction. Whether it’s maxing out our credit cards, binge drinking and smoking or knowingly entering toxic relationships, our inherent need for chaos is seemingly never-ending. Self-destructive behaviors are characterized as activities that put us in harm's way, either physically or mentally. It’s important to note that these behaviors aren’t always intentional or planned and can be impulsive, or the result of factors beyond our control.

So what causes us to place ourselves at risk like this? There are many scientific explanations as to why humans have a knack for self-destructive behaviors. One possible answer may date back to childhood: researchers have found that early trauma and inadequate parental care can cause individuals to engage in self-destruction as a coping mechanism. Mental health challenges, life-changing events or uncontrollable stress can also lead to reckless behavior.

Even Sigmund Freud believed that all humans have a death wish. His death drive theory posits that humans have an unconscious desire to die that can manifest outwardly in the form of aggression, violence or even self-harm. Like many of Frued's ideas, the controversial theory has been criticized by scientists today, but the father of psychology may have been onto something about an inherent human craving for destruction. 

Here are 10 self-destructive behaviors that most of us have flirted with at least once (if not a few times) in our lives:

0 free articles left
Want More? Get unlimited access for as low as $1.99/month

Already a subscriber?

Register or Log In

0 free articlesSubscribe
Discover Magazine Logo
Want more?

Keep reading for as low as $1.99!

Subscribe

Already a subscriber?

Register or Log In

Stay Curious

Sign up for our weekly newsletter and unlock one more article for free.

 

View our Privacy Policy


Want more?
Keep reading for as low as $1.99!


Log In or Register

Already a subscriber?
Find my Subscription

More From Discover
Stay Curious
Join
Our List

Sign up for our weekly science updates.

 
Subscribe
To The Magazine

Save up to 40% off the cover price when you subscribe to Discover magazine.

Copyright © 2025 LabX Media Group