Navigating the 75 hard TikTok challenge | luna app

Get the most out of luna

A teen period tracker + guide to growing up, find out how luna can help your daughter and get all the latest insights straight to your inbox.

By signing up, you are agreeing that we can use your email address to market to you. You can unsubscribe from marketing emails at any time by using the link in our emails. For more information, please review our Privacy Policy.

Navigating the 75 hard TikTok challenge

What is it and is it safe?

Three teenage girls stand together looking down at a phone one of them is holding, in a kitchen with jars on shelves behind them.
Nutrition & exercise

Updated August 1, 2025

Medically reviewed by Dr. Emma Dickie

Quick summary

  • The “75 Hard Challenge” is a strict 75-day program that's trending on TikTok, focusing on intense workouts, dieting, and self-discipline
  • This can be an unhealthy challenge for young people, so try to help your teen create a sustainable version of the challenge with personal goals that support their wellbeing
  • An alternative to this challenge is to create healthy habits as a family which promote long-term health in a positive way

Rated 4.8

Period tracking & more for teens. Guidance for parents.

Have you heard about the “75 Hard Challenge” that's been trending on social media? 

It’s a tough 75-day program that promises big results through strict rules like intense daily workouts, rigid dieting, and more.

How to navigate the “75 Hard TikTok Challenge” with your teen

We understand why the “75 Hard Challenge” might appeal to teens – it’s goal-oriented, motivating, and offers a sense of routine. Much like the back-to-school glow-up trend we see teens getting involved with during school holidays.

Many teens thrive on structure and enjoy working toward self-improvement, especially when fuelled by the excitement of a new year. 

That said, the challenge in its strictest form can feel overwhelming or unsustainable.

The good news is that this is a great opportunity to bond, and explore a variation of the challenge together that’s realistic, healthy, and tailored. 

Working together to create a version that fits your household’s rhythm can be a positive experience. 

Plus, having a commitment buddy makes sticking to goals more fun and achievable!

Rated 4.8

Period tracking & more for teens. Guidance for parents.

How to start the conversation about the "75 Hard TikTok Challenge"

1️⃣ Ask with curiosity

Ask your teen what they’ve heard about the challenge and what excites them about it.

This keeps the conversation open and non-judgemental, showing you’re there to support. 

2️⃣ Reframe and customise

Rather than focusing on rigid rules, encourage your teen to think about their personal goals.

Together, you can design a version of the challenge that feels sustainable and enjoyable. 

3️⃣ Join in as a family

If your teen is open to it, consider setting shared goals or building habits together – luna's got a guide to doing this and avoiding the "almond parent" trap if you need

Being an “accountability buddy” for each other can strengthen bonds and make the experience much more meaningful.

Healthy habits for families to try together

  • Daily movement: whether it’s a family walk or yoga, find something fun to do together – if you need, luna's got a whole guide on how to get your teen into exercise which may help
  • Balanced meals: experiment with trying new recipes or preparing meals together
  • Journalling: reflect on the day, set intentions, or write down things you’re grateful for
  • Family time: schedule screen-free moments to play games, talk, or work on a project
  • Hydration goals: keep each other accountable for drinking more water daily
  • Better sleep routines: encourage winding down with a book or quiet activity

You’re not in this alone

Social media trends can be overwhelming – for parents and teens alike – and luna's here to help. 

If your teen needs extra support, you can always recommend luna. 

We're proven to help teens build confidence and resilience, and can provide tailored guidance on building healthy habits.

Rated 4.8

Period tracking & more for teens. Guidance for parents.

How we created this article:

luna's team of experts comprises GPs, Dermatologists, Safeguarding Leads and Junior Doctors as well as Medical Students with specialised interests in paediatric care, mental health and gynaecology. All articles are created by experts, and reviewed by a member of luna's senior review team.

We'd love to keep in touch!

Sign up to our parent newsletter for emails on the latest teen trends, insights into our luna community and to keep up to date

By signing up, you are agreeing that we can use your email address to market to you. You can unsubscribe from marketing emails at any time by using the link in our emails. For more information, please review our privacy statement.

Cookie preferences

Our website uses cookies and similar technologies, for example for analytics to allow us to understand how you interact with our services, improve our product, and to measure the effectiveness of ads. For further detail on how we use cookies and similar technologies and how we process your personal data, please see our Privacy Policy.

By clicking "Accept all", you consent to the use of all cookies and similar technologies and above-mentioned purposes, as well as to the processing of your data in connection with this. You can choose which type of cookies you'd like to accept using the options below.

Essential cookies

These cookies enable core and basic website functionality and cannot be switched off; for example, your cookie consent options are stored so you are not repeatedly asked to consent. You may disable these by changing your browser settings, but this may affect how the website functions.

Functional cookies

These cookies and similar technologies enable us to provide enhanced functionality and personalisation. For example, your preferences are stored so they do not need to be repeatedly adjusted.

Analytics cookies

These cookies collect information about how you use our services. Our site uses this information to understand how visitors interact with our website, providing metrics such as number of visitors, traffic source, etc.

Marketing cookies

These cookies helps us with measure how effective our Meta (Facebook) adverts are. We’re then able to use this information to improve our marketing. Using a Meta (Facebook) Pixel doesn't allow us to identify any individuals.