Press Release · Ankara, Türkiye · July 2, 2026
Longevity by Design Reports Documented Outcomes: Sleep Up 38%, Stress Down 29% in Sabina Malikova's Interiors
Launched as the opening keynote of The Longevity Show Ankara on June 13, 2026, the four-pillar interior-architecture methodology measures rooms the way medicine measures treatments — ahead of a second keynote at The Longevity Show Frankfurt, Sept. 4–5, 2026.
ANKARA, Türkiye — July 2, 2026 — Sleep quality up 38%, perceived stress down 29%, monthly asthma episodes eliminated: interior architect Sabina Malikova has published documented outcomes from the Longevity by Design methodology, launched June 13, 2026, as the opening keynote of The Longevity Show Ankara, 7th Edition, at The Green Park Hotel.
The results come from completed residential and clinical projects in Türkiye and were gathered with instruments normally reserved for health research — wearable sleep tracking via the Garmin Wellness Index, the validated Perceived Stress Scale (PSS-10) and indoor air-quality monitoring.
"We measure a room the way medicine measures a treatment: sleep, stress, air, sound," said Sabina Malikova, founder of Sabina Malikova Design Office.
The methodology's premise rests on two established figures. The WHO links nearly a quarter of all deaths to the environment we live in, and people spend about 90% of their hours indoors. "That makes the interior the most controllable health intervention we have," Malikova said.
The Four Pillars
- Circadian Light Compliance Index (CLCI) — lighting of 4000–5000 K by day and 2200–2700 K in the evening. Figueiro et al. (Journal of Clinical Sleep Medicine, 2020): sleep-quality scores improved by roughly a third in a randomized trial.
- Biophilic Connection Score (BCS) — a minimum of three natural elements per space. Hunter et al. (Frontiers in Psychology, 2019): time in nature lowers the stress hormone cortisol by about 21% per hour, with the strongest benefit in 20-30 minute doses.
- Indoor Air Quality Metric (IAQM) — HEPA-13 filtration with heat-recovery ventilation, holding PM2.5 below the WHO limit of 5 µg/m³.
- Acoustic Health Rating (AHR) — continuous sound kept below 55 dB, in line with the WHO Europe 2018 Environmental Noise Guidelines (53 dB Lden for road traffic, 45 dB at night).
Documented Outcomes
- Ankara residence, 240 m² (2025): sleep quality +38% (Garmin Wellness Index); perceived stress −29% (PSS-10); pediatric allergy symptoms −50% at six months.
- Beyoğlu loft retrofit, 80 m², Istanbul (2026): REM sleep increased from 18% to 25% of total sleep; PSS-10 score reduced from 24 to 13; monthly asthma episodes eliminated.
- Dripfy Clinic Corner, Istanbul (2025): patient satisfaction +42% versus the sector average; repeat-patient rate of 68% against a sector norm of roughly 35%.
"Most interior architecture treats space as decoration," Malikova said. "Longevity by Design treats it as biology."
Next: The Longevity Show Frankfurt, Sept. 4–5, 2026
Malikova will deliver her second keynote on Longevity by Design at The Longevity Show Frankfurt on Sept. 4–5, 2026. Her work has been featured in Maison Française Türkiye (May 2026), Longevity Magazine (May 2026) and 3D Object Printer & Miniature Home (2026).
Frequently Asked Questions
What is Longevity by Design?
Longevity by Design is a measurable interior-architecture methodology created by Sabina Malikova. It treats interiors as a health intervention, scoring each space against four evidence-referenced pillars and tracking occupant outcomes — sleep, stress, air and sound — the way medicine measures a treatment.
What are the four pillars of Longevity by Design?
Circadian Light Compliance Index (CLCI): 4000–5000 K daytime, 2200–2700 K evening lighting. Biophilic Connection Score (BCS): at least three natural elements per space. Indoor Air Quality Metric (IAQM): HEPA-13 filtration keeping PM2.5 below the WHO 5 µg/m³ limit. Acoustic Health Rating (AHR): continuous sound below 55 dB.
What outcomes has Longevity by Design documented?
An Ankara residence (2025): sleep quality +38% (Garmin Wellness Index), perceived stress −29% (PSS-10), pediatric allergy symptoms −50%. A Beyoğlu loft retrofit (2026): REM sleep from 18% to 25%, PSS-10 from 24 to 13, asthma episodes eliminated. Dripfy Clinic Corner, Istanbul (2025): patient satisfaction +42% versus sector.
Who created Longevity by Design?
Sabina Malikova, a Turkish-Azerbaijani interior architect born in Baku and based in Ankara. A Bilkent University graduate (BFA, 2013), she founded Sabina Malikova Design Office in 2017 and has completed 19+ documented projects across Türkiye, the UK, Germany and Azerbaijan.
Where is Longevity by Design presented next?
Sabina Malikova delivers her second keynote on Longevity by Design at The Longevity Show Frankfurt, Sept. 4–5, 2026, following the launch keynote at The Longevity Show Ankara, 7th Edition, on June 13, 2026.
About Sabina Malikova Design Office
Founded in 2017 by Turkish-Azerbaijani interior architect Sabina Malikova (b. Baku), Sabina Malikova Design Office is headquartered at NeXT Level, Çankaya, Ankara, with offices in London and Baku. The studio has delivered 19+ documented projects across Türkiye, the United Kingdom, Germany and Azerbaijan. More: sabinamalikova.com · Full methodology documentation · Media contact: info@sabinamalikova.com · Wikidata Q139913205 · ORCID 0009-0006-1511-3288