Reletter
Artwork for The Human OS Manual

The Human OS Manual

Oscar Trelles

Exploring the Human Operating System. How biology, cognition, environment, and leadership interact to shape performance, healthspan, and meaning in an overclocked world.

Platform
Substack
PricingOnly free issuesPublishesWeekly
Issues30Founded3 years agoLast Issue9 days ago
Active

Read this Newsletter

humanosmanual.substack.com
Artwork for The Human OS Manual

Latest Issues

The Body Believes the Pattern, Not the Statement

Most people know more than their behavior suggests.

They know they need to sleep. They know they need to move. They know the phone is shaping their attention. They know the extra drink will affect how the day starts tomorrow. They know the...

9 days ago
2

Healthy Boredom Is Unclaimed Bandwidth

The debate about phones often begins with children.

Should schools ban them? Should governments regulate them? Should parents restrict them? Should teenagers be protected from the platforms, or taught to use them better? Should the problem...

16 days ago
3

No One Lives in Pieces

Most advice asks us to divide life into pieces.

Sleep gets one vocabulary. Food gets another. Stress becomes its own category. Work, exercise, productivity, mood, relationships, recovery, technology, aging, and purpose each get their own e...

23 days ago
4

When Convenience Lowers Our Standards

A recent modeling study suggested that reducing ultra-processed food consumption could prevent thousands of heart-disease deaths, with researchers arguing that public education and individual advice are not enough when the food environment...

a month ago
7
1

Is the Human OS Just a Software Metaphor?

One of the most useful questions I have received from early readers of The Human OS Manual was also one of the simplest.

Is the Human OS just a software metaphor?

I liked the question because it went straight to the title. Not the argumen...

a month ago
4

Key Facts

Contact Information
Newsletter Author
Number of Subscribers
Find out how many people subscribe to this newsletter.

Audience Metrics

Subscribers, engagement, traffic and sponsorship for The Human OS Manual.

SubscribersEngagement67Monthly Web Visits
Accepts SponsorsEstimated Cost per Ad

Authors

The writers behind this newsletter.

  • Oscar Trelles

    Author of The Human OS Manual, launching October 2026. Writing on the operating logic behind energy, recovery, behavior, adaptation, and healthspan.

  • Frequently Asked Questions

    How can I access the email archive for The Human OS Manual?

    You can find recent issues that have been published by The Human OS Manual on Reletter by scrolling up to where it says Latest Issues. Tap on the link for any of the most recent emails or hit More Issues to see older ones.

    How many subscribers does The Human OS Manual have?

    To see how many people subscribe to The Human OS Manual, simply upgrade your Reletter account. We provide readership numbers and lots of other stats for this newsletter so you can decide if it's worth reaching out to.

    How can I advertise in The Human OS Manual?

    Newsletter advertising can be extremely effective when it's done right. Before you pitch The Human OS Manual as a potential sponsor or partner, make sure that you've done your research and checked its newsletter stats with Reletter.

    Then, personalize one of our winning pitching templates and send it to the right person using the contact info provided.

    How much does it cost to sponsor a publication like The Human OS Manual?

    Newsletter ad rates (or CPM) vary depending on many factors, including industry, number of subscribers, open rate, ad placement and more.

    To find out how much an ad will cost, contact The Human OS Manual using the contact information provided and ask for a copy of their media kit.

    How can I find newsletters related to The Human OS Manual?

    Scroll up to where it says Related Newsletters to see other publications like The Human OS Manual. You can also search our email newsletter directory to discover other newsletters that cover the topics you're interested in.

    How do I contact The Human OS Manual?

    Reletter provides this newsletter's website URL above, where you will often find their contact information. We also provide links to associated social media accounts and pitching templates so you can reach out fast.