Are teens lazier during puberty? | luna app

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Is it normal to be lazy during puberty?

Explaining what happens to teen energy levels

Teenage girl with curly auburn hair wears headphones and rests with her eyes closed and chin on her hands, in front of a wall decorated with vinyl records.
Confidence & motivation

Updated February 4, 2026

Medically reviewed by Dr. Alex Ho

Teen laziness and phone use has been a hot topic lately.

It's understandable to notice differences between generations, especially with the rapid changes in technology and lifestyle. 

Whilst the scientific evidence remains scant, it’s true that teens today do face unique challenges and influences that might affect their energy levels and interests beyond puberty.

Here are a few factors that might contribute to what you're noticing:

Every generation has its own set of challenges and ways of coping which can make it incredibly hard to have all the answers or even relate to each other through shared experiences so please try not to judge yourself or your teen harshly.

What can really help is encouraging a balance between screen time and other activities – like hobbies or joining clubs. Having a chat with your teen about social media restrictions can help, or suggesting ethical apps that promote mental health – such as by getting them a subscription to luna.

With all that being said, if you do notice your teen is struggling with low energy or motivation more often than not, it might be helpful to have a conversation with them about their mental health. If you feel they are tired or lack energy all the time then it’s also worth seeing a GP who will likely make sure the tiredness isn’t due to anything concerning.

We really hope this has helped offer some context – please know you aren’t the only one feeling like this, and you aren’t failing by not having all the answers. Keep being there for your teen and encouraging them to find things that make them happy outside of social media, and in time hopefully they’ll find something that works for them.

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.

Sources:

Hoi Lun Cheng, Mazen Amatoury, Katharine Steinbeck "Energy expenditure and intake during puberty in healthy nonobese adolescents"

https://pubmed.ncbi.nlm.nih.gov/27629054/

The Health Foundation "What is happening to young people’s mental health?"

https://www.health.org.uk/news-and-comment/blogs/what-is-happening-to-young-people-s-mental-health

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