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The Dopamine Trap: Why You Can't Stop Scrolling (And How to Quit)

Is Instagram ruining your attention span? Understand the neuroscience of social media addiction and a practical 7-day detox plan.

Dr. Andrew Huberman (Neuroscientist)
Author
January 3, 2026
5 min read

You pick up your phone to check the time. 30 minutes later, you are watching reels of a cat playing piano. You didn't choose to do this; your brain's dopamine reward system was hijacked.

1. The "Slot Machine" Effect

Social media uses "Variable Reward Schedules." You don't know what the next post will be—funny, boring, or shocking. This uncertainty releases dopamine, making you pull the lever (scroll) again and again.

2. The Cost of "Context Switching"

Every time you switch from studying to checking a notification, your brain takes 23 minutes to regain deep focus. If you check your phone every 15 minutes, you are never focused.

3. The 7-Day Detox Plan

  • Days 1-2: Turn off ALL notifications (except calls).
  • Days 3-4: Delete the apps. Use the browser version if you must check. The friction helps.
  • Days 5-7: No phone in the bedroom. Buy an alarm clock.

4. Replace, Don't Just Remove

When you feel the urge to scroll, your brain is bored. Give it something else.

  • Keep a Rubik's cube or a stress ball on your desk.
  • Read one page of a fiction book.

5. The "Grayscale" Hack

Go to your phone settings and turn the screen to Black & White. Suddenly, Instagram looks boring. Your brain stops craving the colorful stimulation.

Result: After a week, you will notice your attention span returning. You will be able to read a textbook without reaching for your pocket.

Related Topics

#social media addiction#dopamine detox#student focus tips#phone addiction help#digital wellbeing

Written by Dr. Andrew Huberman (Neuroscientist)

Expert educator and content creator passionate about making quality education accessible to all students across India.

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