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Is cortisol the real reason you cannot sleep?

The stress hormone and sleep connection.

CharavaMonday, Oct 12, 2026 at 3:00 PM EasternKlaviyo
CharavaIs cortisol the real reason you cannot sleep?
Subject
Is cortisol the real reason you cannot sleep?
Preview text
The stress hormone and sleep connection.
From
noreply@charava.co.uk
Brand
Charava
Sent
Mon Oct 12, 2026, 3:00 PM ET
Sent to
United Kingdom (charava.co.uk)
Size
31 KB
Images
1
Links
7, 1 of them buttons
Subject length
45 characters

Against Charava's usual

Sent in the 3 PM hour, which holds 12% of its emails; 20% arrive in the 3 AM hour. The subject is 45 characters; its average is 40.

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From
Charava™ <[email protected]>
Subject
Is cortisol the real reason you cannot sleep?
Date
Mon, 12 Oct 2026 19:00:45 +0000
Message-ID domain
klaviyomail.com
Return-Path domain
k3.send.charava.co.uk
DKIM signature
d=shared.klaviyomail.com s=def1; d=send.charava.co.uk s=mtd1
List-Unsubscribe
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  1. from (unnamed) by kmta-mta-blue-….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

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