{"ok":true,"api":{"name":"SAIMSARA Evidence Object Discovery API","version":"v1"},"mode":"doc_key","editorial_verification":{"status":"human_reviewed","trust_label":"machine_generated_human_reviewed","method":"World ID proof-of-human editorial account","scope":["clinical_integrity","reference_quality","scientific_coherence"],"verification_note":"This Evidence Object is machine-generated and human-reviewed. World ID is used to verify that editorial oversight was submitted by a unique human account.","does_not_mean":"World ID verifies proof-of-human editorial oversight; it does not independently certify the scientific truth of every claim."},"object":{"object_type":"saimsara_evidence_object_metadata","doc_key":"longevity::MORNINGNESS_VS_EVENINGNESS_SS","issue_slug":"longevity","doc_id":"MORNINGNESS_VS_EVENINGNESS_SS","title":"Morningness vs Eveningness","doi":"10.62487/saimsarad5075212","doi_url":"https://doi.org/10.62487/saimsarad5075212","version":"2026-02-28","source_name":"Europe PMC","article_url":"https://saimsara.com/sessions/morningness-eveningness-20260219-202619-d5075212/","image_url":"","topic_tags":"Morningness-eveningness,Chronotype,Circadian rhythm,Mental health,Depression and anxiety,Psychometric properties,Adolescents,Sleep quality,Cardiovascular disease,Cognitive decline","keywords":["Morningness-eveningness","Chronotype","Circadian rhythm","Mental health","Depression and anxiety","Psychometric properties","Adolescents","Sleep quality","Cardiovascular disease","Cognitive decline"],"metrics":{"included_all":1451,"included_original":1136,"reference_index":170,"total_participants":2634947},"discover_url":"https://saimsara.com/api/v1/discover.php?doc_key=longevity%3A%3AMORNINGNESS_VS_EVENINGNESS_SS","paid_evidence_url":"https://saimsara.com/api/v1/evidence.php?doc_key=longevity%3A%3AMORNINGNESS_VS_EVENINGNESS_SS","price":{"amount":"5.00","currency":"USD","units":5,"unit_amount":"1.00"},"payment_methods":["api_key","stripe_checkout","object_grant","x402"],"text_length":6991,"preview":"Results Main numerical result aligned to the query: Eveningness chronotype consistently emerges as a significant risk factor or predictor for a wide array of adverse health and behavioral outcomes. For instance, eveningness is associated with a 1.71-fold (95% CI, 1.47-1.99) increased risk for depressive mood in high-school students, and a 2.96-fold (95% CI: 1.51, 5.86) increased risk of depression in wage earners. In adults, eveningness is linked to a 1.60-fold (95% CI: 1.17-2.17) increased risk of hypertension, and a 1.58-fold (95% CI [1.10 - 2.28]) higher prevalence of metabolic syndrome in coronary heart disease patients. Among women, evening chronotype is associated with a 1.5-fold (95%…","trust_label":"machine_generated_human_reviewed","editorial_verification":{"status":"human_reviewed","trust_label":"machine_generated_human_reviewed","method":"World ID proof-of-human editorial account","scope":["clinical_integrity","reference_quality","scientific_coherence"],"verification_note":"This Evidence Object is machine-generated and human-reviewed. World ID is used to verify that editorial oversight was submitted by a unique human account.","does_not_mean":"World ID verifies proof-of-human editorial oversight; it does not independently certify the scientific truth of every claim."},"checkout":{"method":"POST","url":"https://saimsara.com/create_checkout_session.php","content_type":"application/x-www-form-urlencoded","params":{"plan":"evidence_object","doc_key":"longevity::MORNINGNESS_VS_EVENINGNESS_SS"},"optional_params":{"customer_email":"user@example.com"},"price":{"amount":"5.00","currency":"USD","units":5,"unit_amount":"1.00"},"curl_example":"curl -X POST https://saimsara.com/create_checkout_session.php -d \"plan=evidence_object\" -d \"doc_key=longevity::MORNINGNESS_VS_EVENINGNESS_SS\" -d \"customer_email=user@example.com\""},"access_after_payment":{"header":"X-SAIMSARA-Payment-Proof","endpoint":"https://saimsara.com/api/v1/evidence.php?doc_key=longevity%3A%3AMORNINGNESS_VS_EVENINGNESS_SS","curl_example":"curl -H \"X-SAIMSARA-Payment-Proof: YOUR_PAYMENT_PROOF_TOKEN\" \"https://saimsara.com/api/v1/evidence.php?doc_key=longevity%3A%3AMORNINGNESS_VS_EVENINGNESS_SS\""}}}