Biohack With Jack

Privacy Policy for Biohack with Jack

Last Updated: 12/12/25

Who I Am

I’m Jack, and I run Biohack with Jack on Substack. This privacy policy explains how I handle your information.

What Information I Collect

When you subscribe, I collect:

• Your email address (required to send you the newsletter)

• Your name (if you provide it)

• Your subscription tier (free, paid, or founding member)

• Any information you voluntarily share when you message me

Substack also automatically collects:

• Basic analytics (open rates, click rates)

• Technical information (IP address, device type)

How I Use Your Information

I use your information to:

• Send you Hacks and Guides

• Respond to your messages

• Understand what content resonates with readers

• Improve the newsletter

What I Don’t Do

I will never:

• Sell your email address to third parties

• Spam you with promotional content unrelated to health and wellness

• Share your personal messages or health information publicly without permission

• Use your information for purposes you didn’t sign up for

Your Health Information

If you share personal health details with me via email or messages:

• I keep it confidential

• I won’t share it publicly without your explicit permission

• I may reference general themes from reader conversations (anonymously) to inform content

Third-Party Services

This newsletter runs on Substack. Their privacy policy applies to how they handle your data: [Substack Privacy Policy link]

I may also use:

• Email service providers to communicate with you

• Analytics tools to understand newsletter performance

Your Rights

You can:

• Unsubscribe anytime (link at the bottom of every email)

• Request deletion of your data by contacting me

• Update your email or subscription preferences in your Substack settings

• Ask questions about how your information is used

Data Security

I take reasonable precautions to protect your information, but no internet transmission is 100% secure. Use your judgment about what personal health information you share.

Children’s Privacy

This newsletter is not intended for anyone under 18. If you’re under 18, please don’t subscribe.

Changes to This Policy

I may update this privacy policy occasionally. I’ll notify subscribers of any significant changes.

Questions?

Email me directly through Substack if you have privacy concerns.

By subscribing to Biohack with Jack, you agree to this privacy policy.