Your HRV score is mostly noise, not signal
Preview text: Resting heart rate variability: the recovery metric your wearable overinterprets WEEK 38 ·…
Using this email in an article? Credit: MaxHuman email via They Sent It, with a link to this page. Full-size image
- Subject
- Your HRV score is mostly noise, not signal
- Preview text
- Resting heart rate variability: the recovery metric your wearable overinterprets WEEK 38 ·…
- From
- max@
maxhuman.ai - Brand
- MaxHuman
- ESP
- Klaviyo
- Sent
- Thu Sep 17, 2026, 10:01 AM ET
- Size
- 25 KB
- Images
- 5
- Links
- 5
- Subject length
- 42 characters
Against MaxHuman's usual
Sent in its busiest hour, 10 AM, which holds 79% of its emails. The subject is 42 characters; its average is 39.
Email headers
What the brand's servers put on this email. Our receiving servers, the address we subscribed with and unsubscribe links are left out.
- From
- Max <[email protected]>
- Reply-To
- [email protected]
- Subject
- Your HRV score is mostly noise, not signal
- Date
- Thu, 17 Sep 2026 14:01:57 +0000
- Message-ID domain
- klaviyomail.com
- Return-Path domain
- k3.max.maxhuman.ai
- DKIM signature
- d=shared.klaviyomail.com s=def1; d=max.maxhuman.ai s=mtd1
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- from (unnamed) by kmta-mta-green-….servers.clovesoftware.com with SMTP
Other sending headers (names only): X-Mailer-Info-Extra2, X-Mailer-Info, X-Mailer-Info-Extra, X-Kmail-Account, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse
Sent just before and after
| Oct 15, 2026 10:00 AM | Taurine hype vs. what's tested in humans | |
| Oct 10, 2026 1:32 PM | Welcome, MAX–human. | |
| Oct 1, 2026 10:04 AM | The wrong nitric oxide supplement is on your shelf | |
| Sep 17, 2026 10:01 AM | Your HRV score is mostly noise, not signal (this email) | |
| Aug 12, 2026 10:11 AM | Your post-lift ice bath might be undoing the workout | |
| Jul 28, 2026 10:03 AM | Grip strength: the mirror you keep misreading | |
| Jul 24, 2026 7:17 AM | Welcome, MAX–human. |
More from MaxHuman
All MaxHuman emailsLift lighter, grow the same? Here's what holds up
Nov 5, 2026 10:01 AM
Berberine works. Almost none of it gets absorbed
Oct 29, 2026 10:02 AM
Baking soda works. You're just timing it wrong
Oct 22, 2026 10:03 AM
Taurine hype vs. what's tested in humans
Oct 15, 2026 10:00 AM
Oct 10, 2026 1:32 PM
The wrong nitric oxide supplement is on your shelf
Oct 1, 2026 10:04 AM
