---
title: "Science Challenges & Habits | Harder"
meta:
description: "Explore science challenges and habit trackers on Harder. Build curiosity, stay consistent, and turn learning into daily action."
"og:description": "Explore science challenges and habit trackers on Harder. Build curiosity, stay consistent, and turn learning into daily action."
"og:title": "Science Challenges & Habits"
---
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# **Science**
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[**Why January Isn't Actually the Best Time to Start New Habits (And When Is)**
Most January resolutions are abandoned by mid-February. But the research on fresh starts is actually good news u2014 you don't need January at all.](https://harder.pro/blog/best-time-to-start-a-habit.html)
[**The Science of Streaks: Why Your Brain Loves Them, Hates Losing Them, and What That Means for Habit Building**
Duolingo governs hundreds of millions of people with a tiny flame. Here's the psychology behind streak mechanics u2014 and why harsh streaks can actually destroy habits.](https://harder.pro/blog/habit-streaks-psychology-science.html)
[**Why Doing Things in Public Changes Everything About Habit Building**
Doing something privately and doing it where others can see you are psychologically different acts. Here's the science behind public accountability — and why it might be the missing piece in your habit practice.](https://harder.pro/blog/public-accountability-habit-building-science.html)